Free U.S. Shipping & Lifetime Warranty

Endura Flap Severe Weather Vinyl Sliding Glass Dog Door

4 reviews

Endura Flap Severe Weather Vinyl Sliding Glass Dog Door

4 reviews
Regular price
$474.99
Sale price
$474.99
Unit price
per 

  • Dual-flap vinyl panel designed specifically for vinyl sliding glass doors with tracks at least 1.5" thick 
  • Durable flaps designed to resist extreme weather from -40℉ to 110
  • Dual-pane, Low-E glass reduces UV rays and infrared light
  • Weather-resistant flap protects your home from extreme heat and cold for maximum energy efficiency  
  • Sturdy locking cover included to block access to the flap when needed 
  • Easy installation in 1-1/2" to 1-3/4" thick track
  • Designed specifically for vinyl-framed sliding glass doors with tracks at least 1.5" thick 
  • Semi-permanent with spring-loaded design, perfect for rentals or vacation homes
  • Easy to install and doesn't require semi-permanent installation
  • Engineered to withstand temperatures from from -40℉ and 110℉
  • Flap lined with magnets on all sides to stay shut in winds up to 50 mph
  • Dual-pane, Low-E glass blocks harsh light without compromising the amount of natural light coming in
  • UV-resistant flaps stay flexible in the cold and won't warp or yellow in the sun 
  • Flexible flap swings on a rod at the top to avoid cracking and flexing
  • Comes with a secure locking cover to block access when needed

Need help installing? Check out our Vinyl Sliding Glass Door Installation page.

Withstands Extreme Weather Withstands Extreme Weather
High-Quality Home Improvement High-Quality Home Improvement
Simple Installation in Minutes Simple Installation in Minutes

Product Details

  • Dual-flap vinyl panel designed specifically for vinyl sliding glass doors with tracks at least 1.5" thick 
  • Durable flaps designed to resist extreme weather from -40℉ to 110
  • Dual-pane, Low-E glass reduces UV rays and infrared light
  • Weather-resistant flap protects your home from extreme heat and cold for maximum energy efficiency  
  • Sturdy locking cover included to block access to the flap when needed 
  • Easy installation in 1-1/2" to 1-3/4" thick track
  • Designed specifically for vinyl-framed sliding glass doors with tracks at least 1.5" thick 
  • Semi-permanent with spring-loaded design, perfect for rentals or vacation homes
  • Easy to install and doesn't require semi-permanent installation
  • Engineered to withstand temperatures from from -40℉ and 110℉
  • Flap lined with magnets on all sides to stay shut in winds up to 50 mph
  • Dual-pane, Low-E glass blocks harsh light without compromising the amount of natural light coming in
  • UV-resistant flaps stay flexible in the cold and won't warp or yellow in the sun 
  • Flexible flap swings on a rod at the top to avoid cracking and flexing
  • Comes with a secure locking cover to block access when needed

Need help installing? Check out our Vinyl Sliding Glass Door Installation page.

Find The Best Pet Door Size For My Pet

A

Pet Height: inches

B

Pet Width: inches

Please fill the above fields.

Size Chart

Flap SizeFlap DimensionStep Over HeightOverall Panel WidthRecommended Pet Height
Small 6" w x 10" h 4" 12 3/8" 10" - 14"
Medium 8" w x 14" h 4" 14 3/8" 10" - 18"
Large  10" w x 18" h 6" 16 7/16" 12" - 24"
Extra Large  12" w x 22" h 6" 18 1/2" 12" - 28"

Height Options:

  • Short: 74 ¾" - 77 ¾"
  • Regular: 77 ¼" - 80 ¼"

If your measured track height is near the bottom of the adjustment range then you should review a Track Measuring Guide.

Additional Information

Weight

30.6994

Color

White

Flap Material

Flexible

Your Maximum Pet Size

Cats, Large Cats, Small Dogs, Medium Dogs, Large Dogs, X-Large Dogs

Climate Suitability

Severe-4 Season

House Locking Method

C-Clamp Lock

Sealing Value

Very High

Wind Resistance

Very High

Installation icon Difficulty Easy
Installation icon Steps 4
Installation icon Time Required 0.5 hours
Installation icon Sections 01
Installation icon Flags 01

Parts

  • 1 Vinyl Panel Pet Door
  • 1 Weatherstrip Seal Roll

Tools

  • #2 Philips head screw driver
  • Non-metal hammer
  • Scissors

Please read instructions & notes thoroughly before installation.

Step 1 Separate Flap Frames

  • Lay the entire panel on a flat surface. Use a #2 Philips head screwdriver to unscrew the four frame screws from the flap frames to separate them, then set them aside.

Step 2 Loosen Side-Screws

  • Loosen both the middle and bottom sets of side-screws by one turn.

Step 3 Adjust Stepover Height

  • Once the bottom and middle side-screws are loosened, slide the spacer(s) down to the bottom of the panel. Pull the adjustable seal extrusion(s) down and out to place it between the adjustable spacer and the adjacent crosspiece.
  • You can move the spacer(s) above or below the flap to raise or lower it until the desired flap height is achieved.

Step 4 Replace Side and Middle Screws

  • Once the desired flap height is achieved, replace and tighten the bottom side-screws and tighten the middle side-screws.

Step 5 Reattach Flap Frames

  • To reinstate the pet door assembly, sandwich the interior and exterior frames on either side of the pane how they came. Insert the four frame screws through the pet door frames.
  • Do not fully tighten the screws until all four are inserted and the pet door is leveled.
  • If the white connector pieces fall off of the Bottom Crosspiece, this step's diagram pictures how to orient the connector back onto both sides of the Bottom Crosspiece.

Step 6 Add Hole Plugs

  • Use the wooden of a hammer, a rubber mallet, or another non-metal tool to tap the hole plugs over the eight exposed frame screws.

Step 7 Loosen Height Adjustment Locks

  • Loosen the height adjustment locks at the top of the panel. This allows the spring mechanism to move freely up and down.

Step 8 Insert Panel Into Track

  • Insert the panel into the upper track of your door frame, push the panel into the spring mechanism, then swing the bottom of the panel up and over the threshold into the lower track rail.
  • If you can’t clear the track, try swinging in from the outside, as the outside track wall may be shorter. If the panel still doesn’t fit, see the FAQ for guidance.

Step 9 Apply Weatherstrip

  • Once you are confident that the panel fits, remove the panel from the track and lay it on its side on the ground.
  • Apply the foam weatherstrip seal by peeling back the paper and exposing the adhesive. Unroll it along the edge of the panel, pressing to ensure it adheres. Install on both sides and trim to fit with scissors.

Step 10 Place Panel In Track

  • Place the panel back into the sliding glass door, then tighten the height adjustment locks to lock it in place.

How to Adjust Stepover Height

FAQ

What if my panel is slightly too tall?

You can trim up to 5/16" off the spring-loaded adjustment piece at the top. Remove the adjustment piece with a #2 Philips head screwdriver and use scissors to cut down the flanges. Be careful not to cut too low.

What if my panel is slightly too short?

We ofer height extensions that will add 1 1/2" to the top of the panel that you slide into the channel at the top. These are made from the same vinyl as the panel so the color will match exactly. If the extension makes the panel feel unstable, you can secure it with screws.

What if the panel is wobbling slightly back and forth?

If your track is wider than 1 1/2", you can use small wooden shims or extra weather-stripping to fill the gap inside the top and bottom tracks. By placing the material inside the tracks you won't be able to see it, but it will stabilize the panel.

Locking Your Door

Since you cannot lock your sliding glass door to the panel, we have provided you with a sliding door clamp lock to secure your home.

Installing the sliding door clamp:

This clamp as a screw that tightens by hand to prevent the sliding door from moving beyond the clamp's placement. For doors manufactured with the glass slider on the inside track, the lock can usually be installed on the door's raised track.

If you aren't able to use the lock that comes with the panel:

A great alternative to locking your sliding glass door is a Charley bar or dowel. Both block the slider from opening. When engaged, you cannot pull the sliding door away from the pet door panel.

Videos

Adjusting the Stepover


Installation Video


How to Measure Your Door for a Sliding Glass Pet Door


How to Adjust the Magnet Strength of Your Endura Flap


The Leaf Blower Test


Endura Flap Dog Doors Durability

FAQ

Is this the same as the Thermo Panel 3e?

This is very similar in that it has the same height ranges, flap sizes, and dual-pane Low-e glass. However, this vinyl panel is specifically made to fit better in the wider vinyl slider tracks. Read about the differences between vinyl and aluminum pet door panels here.

Will it fit all vinyl sliding glass doors?

This panel fits doors that have a recessed track at least 1-1/2" wide, with a rail in the bottom that is about the size of a pencil. The panel is made with a small channel that will case over that little rail

Does it lock?

We do include a c-clamp lock to lock the panel in place in your slider track. However, the panel does not mate with your existing sliding door lock. You can also use a Charley bar or wooden dowel for additional security.

Can an intruder remove it from the outside?

The thumbscrews are on the inside of the house so you cannot loosen them from the outside.

Does the flap lock?

The severe weather vinyl sliding door panel comes with a secure locking cover to block access to the flap when needed.

Does this panel insulate well?

Yes, it insulates very well. The flap is lined with magnets on three sides to stay shut in winds up to 50mph. The glass in the panel is dual-pane, Low-E for maximum insulation.

How do I measure for it?

You will want to measure from the deepest part (down past the little metal rail) in the bottom, then all the way up to the deepest part inside the top track for your track height.

Does it come in any color other than white?

No, but the vinyl can be painted to match your home.

What if my track is wider than 1-1/2"?

It will still work if your track is wider, but if the channel in the bottom, top, or side measures less than that you will not be able to fit it into place properly.

Does your door have to be vinyl?

No, this can work for aluminum sliders with tracks at least 1.5" thick.

Is the flap flexible?

It is flexible, but since it is two pieces sandwiched together it is a little stiffer and heavier than the more economical vinyl flaps.

Is the flap clear?

It is a little foggy, but it is see-through so it's easy for pets to use.

Will this form condensation like the aluminum panels?

Nope! One of the benefits of a vinyl panel is that it won't "sweat" in cold weather the way aluminum panels can.

Warranty

Endura Flap products have a lifetime warranty against defects in materials and workmanship under standard regular use. Damage caused by not using the product as intended, improper installation, and chewing is not covered under this warranty.

Customer Reviews

Customer Reviews
2.5 Based on 4 Reviews
5 ★
25% 
1
4 ★
0% 
0
3 ★
25% 
1
2 ★
0% 
0
1 ★
50% 
2
Write a Review Ask a Question

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
DG
04/04/2022
David G.
United States

Not up to hope & expectation

Door does not close reliably. Old, much cheaper single flap door was better. The foam “seals” where the slider meets the fixed dog-door panel is a cheap and completely, self-defeatingly cheap, ****** solution. Had to tape around the top, bottom, and other side of there panel to prevent wicked draft and heat loss; the foam side is unremediable since it has to move and leaks cold very badly. Plus that cheap foam and standard double-stick tape will break down quickly. Tape is already coming unstuck, foam crumbling. Around “storm flap” of course, leaks heat and allows cold air in at least as badly as cheap, old door that this was Intended to replace. If this was inexpensive, it would still be a disappointment and failure, however, it was VERY expensive to boot, I would never recommend this item. Sales rep on phone was very nice and helpful, and called before shipping to let me know I had ordered an unnecessary and expensive additional part, which she removed from the order and refunded. At least.

SV
03/26/2022
Scott V.
United States United States

Not so good

Customer service was nice but the door itself, not so much. The plastic pieces that hold the magnets on the bottom of the faps were too large and wouldn't allow the flaps on the door to open. I even had difficulty pushing it through. Also once pushed through it would allow the flap to come back and center up. The panel also fit slightly crooked. For the money I paid I expected a higher quality item. I've had nothing but issues with it. Going to call customer service again and see what they can do.

RJ
03/13/2022
Robert J.
United States United States

Not impressed

So this is a pretty expensive door. I installed it the day after I had a new sliding glass door installed. Unfortunately this insert did not fit in level. I have to keep something pushed against the door to keep it flush. This is because the knobs at the top are too close to the edge of the door so the knobs hit the frame before the end of the insert does. Secondly, the top of the door is on a spring. This is so the insert can fit into the different heights of door frames. Well when you put the insert in, this creates a sort of wind tunnel so you can literally feel a breeze blowing in. Not at all what I would expect from something stating severe weather. Now on to the flaps. If there is any wing blowing, and I mean any, then the flaps do not close. So my dogs go outside and the flaps open out. Once they clear the flaps come down and in as expected. But not all the way back down. Any wind keeps them from closing all the way. Not impressed from a door that costs $600

D
11/11/2019
David

Best pet door!

Very nice! It looks like it belongs there. The flap seals so tight my dog has a hard time understanding she can go through it but she’s figuring it out.

Endura Flap Severe Weather Vinyl Sliding Glass Dog Door

Small / 77.25" - 80.25" Edit

This pet door for sliding door in Extra Large can accommodate doggys as large as a Great Dane.

Find The Best Pet Door Size For My Pet

A

Pet Height: inches

B

Pet Width: inches

Please fill the above fields.

Flap SizeFlap DimensionStep Over HeightOverall Panel WidthRecommended Pet Height
Small 6" w x 10" h 4" 12 3/8" 10" - 14"
Medium 8" w x 14" h 4" 14 3/8" 10" - 18"
Large  10" w x 18" h 6" 16 7/16" 12" - 24"
Extra Large  12" w x 22" h 6" 18 1/2" 12" - 28"

Height Options:

  • Short: 74 ¾" - 77 ¾"
  • Regular: 77 ¼" - 80 ¼"

If your measured track height is near the bottom of the adjustment range then you should review a Track Measuring Guide.

Weight

30.6994

Color

White

Flap Material

Flexible

Your Maximum Pet Size

Cats, Large Cats, Small Dogs, Medium Dogs, Large Dogs, X-Large Dogs

Climate Suitability

Severe-4 Season

House Locking Method

C-Clamp Lock

Sealing Value

Very High

Wind Resistance

Very High

Installation Instructions

Installation icon Difficulty Easy
Installation icon Steps 4
Installation icon Time Required 0.5 hours
Installation icon Sections 01
Installation icon Flags 01

Parts

  • 1 Vinyl Panel Pet Door
  • 1 Weatherstrip Seal Roll

Tools

  • #2 Philips head screw driver
  • Non-metal hammer
  • Scissors

Please read instructions & notes thoroughly before installation.

Step 1 Separate Flap Frames

  • Lay the entire panel on a flat surface. Use a #2 Philips head screwdriver to unscrew the four frame screws from the flap frames to separate them, then set them aside.

Step 2 Loosen Side-Screws

  • Loosen both the middle and bottom sets of side-screws by one turn.

Step 3 Adjust Stepover Height

  • Once the bottom and middle side-screws are loosened, slide the spacer(s) down to the bottom of the panel. Pull the adjustable seal extrusion(s) down and out to place it between the adjustable spacer and the adjacent crosspiece.
  • You can move the spacer(s) above or below the flap to raise or lower it until the desired flap height is achieved.

Step 4 Replace Side and Middle Screws

  • Once the desired flap height is achieved, replace and tighten the bottom side-screws and tighten the middle side-screws.

Step 5 Reattach Flap Frames

  • To reinstate the pet door assembly, sandwich the interior and exterior frames on either side of the pane how they came. Insert the four frame screws through the pet door frames.
  • Do not fully tighten the screws until all four are inserted and the pet door is leveled.
  • If the white connector pieces fall off of the Bottom Crosspiece, this step's diagram pictures how to orient the connector back onto both sides of the Bottom Crosspiece.

Step 6 Add Hole Plugs

  • Use the wooden of a hammer, a rubber mallet, or another non-metal tool to tap the hole plugs over the eight exposed frame screws.

Step 7 Loosen Height Adjustment Locks

  • Loosen the height adjustment locks at the top of the panel. This allows the spring mechanism to move freely up and down.

Step 8 Insert Panel Into Track

  • Insert the panel into the upper track of your door frame, push the panel into the spring mechanism, then swing the bottom of the panel up and over the threshold into the lower track rail.
  • If you can’t clear the track, try swinging in from the outside, as the outside track wall may be shorter. If the panel still doesn’t fit, see the FAQ for guidance.

Step 9 Apply Weatherstrip

  • Once you are confident that the panel fits, remove the panel from the track and lay it on its side on the ground.
  • Apply the foam weatherstrip seal by peeling back the paper and exposing the adhesive. Unroll it along the edge of the panel, pressing to ensure it adheres. Install on both sides and trim to fit with scissors.

Step 10 Place Panel In Track

  • Place the panel back into the sliding glass door, then tighten the height adjustment locks to lock it in place.

How to Adjust Stepover Height

FAQ

What if my panel is slightly too tall?

You can trim up to 5/16" off the spring-loaded adjustment piece at the top. Remove the adjustment piece with a #2 Philips head screwdriver and use scissors to cut down the flanges. Be careful not to cut too low.

What if my panel is slightly too short?

We ofer height extensions that will add 1 1/2" to the top of the panel that you slide into the channel at the top. These are made from the same vinyl as the panel so the color will match exactly. If the extension makes the panel feel unstable, you can secure it with screws.

What if the panel is wobbling slightly back and forth?

If your track is wider than 1 1/2", you can use small wooden shims or extra weather-stripping to fill the gap inside the top and bottom tracks. By placing the material inside the tracks you won't be able to see it, but it will stabilize the panel.

Locking Your Door

Since you cannot lock your sliding glass door to the panel, we have provided you with a sliding door clamp lock to secure your home.

Installing the sliding door clamp:

This clamp as a screw that tightens by hand to prevent the sliding door from moving beyond the clamp's placement. For doors manufactured with the glass slider on the inside track, the lock can usually be installed on the door's raised track.

If you aren't able to use the lock that comes with the panel:

A great alternative to locking your sliding glass door is a Charley bar or dowel. Both block the slider from opening. When engaged, you cannot pull the sliding door away from the pet door panel.

Videos

Adjusting the Stepover


Installation Video


How to Measure Your Door for a Sliding Glass Pet Door


How to Adjust the Magnet Strength of Your Endura Flap


The Leaf Blower Test


Endura Flap Dog Doors Durability

FAQ

Is this the same as the Thermo Panel 3e?

This is very similar in that it has the same height ranges, flap sizes, and dual-pane Low-e glass. However, this vinyl panel is specifically made to fit better in the wider vinyl slider tracks. Read about the differences between vinyl and aluminum pet door panels here.

Will it fit all vinyl sliding glass doors?

This panel fits doors that have a recessed track at least 1-1/2" wide, with a rail in the bottom that is about the size of a pencil. The panel is made with a small channel that will case over that little rail

Does it lock?

We do include a c-clamp lock to lock the panel in place in your slider track. However, the panel does not mate with your existing sliding door lock. You can also use a Charley bar or wooden dowel for additional security.

Can an intruder remove it from the outside?

The thumbscrews are on the inside of the house so you cannot loosen them from the outside.

Does the flap lock?

The severe weather vinyl sliding door panel comes with a secure locking cover to block access to the flap when needed.

Does this panel insulate well?

Yes, it insulates very well. The flap is lined with magnets on three sides to stay shut in winds up to 50mph. The glass in the panel is dual-pane, Low-E for maximum insulation.

How do I measure for it?

You will want to measure from the deepest part (down past the little metal rail) in the bottom, then all the way up to the deepest part inside the top track for your track height.

Does it come in any color other than white?

No, but the vinyl can be painted to match your home.

What if my track is wider than 1-1/2"?

It will still work if your track is wider, but if the channel in the bottom, top, or side measures less than that you will not be able to fit it into place properly.

Does your door have to be vinyl?

No, this can work for aluminum sliders with tracks at least 1.5" thick.

Is the flap flexible?

It is flexible, but since it is two pieces sandwiched together it is a little stiffer and heavier than the more economical vinyl flaps.

Is the flap clear?

It is a little foggy, but it is see-through so it's easy for pets to use.

Will this form condensation like the aluminum panels?

Nope! One of the benefits of a vinyl panel is that it won't "sweat" in cold weather the way aluminum panels can.

Warranty

Endura Flap products have a lifetime warranty against defects in materials and workmanship under standard regular use. Damage caused by not using the product as intended, improper installation, and chewing is not covered under this warranty.

Customer Reviews

Customer Reviews
2.5 Based on 4 Reviews
5 ★
25% 
1
4 ★
0% 
0
3 ★
25% 
1
2 ★
0% 
0
1 ★
50% 
2
Write a Review Ask a Question

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
DG
04/04/2022
David G.
United States

Not up to hope & expectation

Door does not close reliably. Old, much cheaper single flap door was better. The foam “seals” where the slider meets the fixed dog-door panel is a cheap and completely, self-defeatingly cheap, ****** solution. Had to tape around the top, bottom, and other side of there panel to prevent wicked draft and heat loss; the foam side is unremediable since it has to move and leaks cold very badly. Plus that cheap foam and standard double-stick tape will break down quickly. Tape is already coming unstuck, foam crumbling. Around “storm flap” of course, leaks heat and allows cold air in at least as badly as cheap, old door that this was Intended to replace. If this was inexpensive, it would still be a disappointment and failure, however, it was VERY expensive to boot, I would never recommend this item. Sales rep on phone was very nice and helpful, and called before shipping to let me know I had ordered an unnecessary and expensive additional part, which she removed from the order and refunded. At least.

SV
03/26/2022
Scott V.
United States United States

Not so good

Customer service was nice but the door itself, not so much. The plastic pieces that hold the magnets on the bottom of the faps were too large and wouldn't allow the flaps on the door to open. I even had difficulty pushing it through. Also once pushed through it would allow the flap to come back and center up. The panel also fit slightly crooked. For the money I paid I expected a higher quality item. I've had nothing but issues with it. Going to call customer service again and see what they can do.

RJ
03/13/2022
Robert J.
United States United States

Not impressed

So this is a pretty expensive door. I installed it the day after I had a new sliding glass door installed. Unfortunately this insert did not fit in level. I have to keep something pushed against the door to keep it flush. This is because the knobs at the top are too close to the edge of the door so the knobs hit the frame before the end of the insert does. Secondly, the top of the door is on a spring. This is so the insert can fit into the different heights of door frames. Well when you put the insert in, this creates a sort of wind tunnel so you can literally feel a breeze blowing in. Not at all what I would expect from something stating severe weather. Now on to the flaps. If there is any wing blowing, and I mean any, then the flaps do not close. So my dogs go outside and the flaps open out. Once they clear the flaps come down and in as expected. But not all the way back down. Any wind keeps them from closing all the way. Not impressed from a door that costs $600

D
11/11/2019
David

Best pet door!

Very nice! It looks like it belongs there. The flap seals so tight my dog has a hard time understanding she can go through it but she’s figuring it out.

Lifetime Warranty
Free U.S. Shipping
100% Secure Checkout
Easy Returns