--- product_id: 126820256 title: "Thermo Panel Pet Door for Sliding Glass Doors | Heavy-Duty Aluminum Frame with Secure Locking Cover | Energy Efficient & Easy Install | Black, Small Flap, 77.25\"-80.25\" Slider Height" brand: "endura flap" price: "€ 788.48" currency: EUR in_stock: true reviews_count: 8 url: https://www.desertcart.ie/products/126820256-thermo-panel-pet-door-for-sliding-glass-doors-heavy-duty store_origin: IE region: Ireland --- # Secure locking cover with C-Clamp lock Energy-efficient dual-layer magnetic flap Heavy-duty aluminum frame Thermo Panel Pet Door for Sliding Glass Doors | Heavy-Duty Aluminum Frame with Secure Locking Cover | Energy Efficient & Easy Install | Black, Small Flap, 77.25"-80.25" Slider Height **Brand:** endura flap **Price:** € 788.48 **Availability:** ✅ In Stock ## Summary > 🐾 Unlock freedom and energy savings with style! ## Quick Answers - **What is this?** Thermo Panel Pet Door for Sliding Glass Doors | Heavy-Duty Aluminum Frame with Secure Locking Cover | Energy Efficient & Easy Install | Black, Small Flap, 77.25"-80.25" Slider Height by endura flap - **How much does it cost?** € 788.48 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/126820256-thermo-panel-pet-door-for-sliding-glass-doors-heavy-duty) ## Best For - endura flap enthusiasts ## Why This Product - Trusted endura flap brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Lifetime Confidence:** Proudly made in the USA with a lifetime warranty—invest once, enjoy forever. - • **Lock It Down, Stay Secure:** Molded ABS locking cover plus C-Clamp lock provide peace of mind without sacrificing convenience. - • **Energy Smart, Pet Friendly:** Dual-layer magnetic flap minimizes heat loss, keeping your home cozy while giving pets freedom. - • **Seamless Sliding Door Integration:** Fits sliding glass doors 77.25"-80.25" high with easy track installation—no permanent modifications needed. - • **Built to Last, Designed to Protect:** Heavy-duty aluminum frame and tempered safety glass ensure durability and premium insulation. ## Overview The Endura Flap Thermo Panel Pet Door is a heavy-duty, energy-efficient pet door designed for sliding glass doors between 77.25" and 80.25" in height. Featuring a durable aluminum frame, tempered safety glass, and a dual-layer magnetic flap, it offers excellent insulation and security. Easy to install without permanent modifications, it includes a secure locking cover and C-Clamp lock for added safety. Made in the USA and backed by a lifetime warranty, it’s perfect for pet owners seeking durability, convenience, and energy savings. ## Description Full description not available ## Features - HEAVY DUTY ENERGY EFFICIENCY: Endura Flap thermo panel features an energy-efficient design with tempered safety glass, magnetic sealing dual-layer flap, and heavy-duty aluminum frame, providing excellent insulation and durability for pet owners; small flap measures 6" x 11" and is suitable for pets up to 15" tall - DESIGNED FOR SLIDING GLASS DOORS: the pet door secures into the track of your existing sliding glass door, requiring a track width of at least 1"; small pet door will require up to 10-3/16" width in your slider, allowing you to continue using your sliding glass door normally - VERSATILE INSTALLATION: available in 3 different height ranges, with a sliding installation mechanism to accommodate various door models, the thermo panel is quick and easy to install, ideal for renters and vacation homes without requiring the need for permanent installation - DURABLE AND SECURE: the Endura Flap thermo panel includes a heavy-duty molded ABS locking cover and C-Clamp Lock, ensuring safety and control when needed, while allowing your pets the freedom to enter and exit as they please; for additional security, pet owners can consider using a charley-bar to fix the sliding door in place - LIFETIME GUARANTEE: Endura Flap pet doors are proudly built in the USA, using high quality materials, and backed by a lifetime warranty; experience worry-free satisfaction for you and your pet ## Product Details - **Size:** 77.25" - 80.25" Slider Height - **Brand:** Endura Flap - **Color:** Black - **Material:** Aluminum - **Closure Type:** Magnetic ## Images ![Thermo Panel Pet Door for Sliding Glass Doors | Heavy-Duty Aluminum Frame with Secure Locking Cover | Energy Efficient & Easy Install | Black, Small Flap, 77.25"-80.25" Slider Height - Image 1](https://m.media-amazon.com/images/I/219fwwaVdBL.jpg) ![Thermo Panel Pet Door for Sliding Glass Doors | Heavy-Duty Aluminum Frame with Secure Locking Cover | Energy Efficient & Easy Install | Black, Small Flap, 77.25"-80.25" Slider Height - Image 2](https://m.media-amazon.com/images/I/5174G-U54UL.jpg) ![Thermo Panel Pet Door for Sliding Glass Doors | Heavy-Duty Aluminum Frame with Secure Locking Cover | Energy Efficient & Easy Install | Black, Small Flap, 77.25"-80.25" Slider Height - Image 3](https://m.media-amazon.com/images/I/31qRWDvYp9L.jpg) ![Thermo Panel Pet Door for Sliding Glass Doors | Heavy-Duty Aluminum Frame with Secure Locking Cover | Energy Efficient & Easy Install | Black, Small Flap, 77.25"-80.25" Slider Height - Image 4](https://m.media-amazon.com/images/I/31KUc8nXkxL.jpg) ![Thermo Panel Pet Door for Sliding Glass Doors | Heavy-Duty Aluminum Frame with Secure Locking Cover | Energy Efficient & Easy Install | Black, Small Flap, 77.25"-80.25" Slider Height - Image 5](https://m.media-amazon.com/images/I/81nPuXKd+zL.jpg) ## Available Options This product comes in different **Pattern, Size** options. ## Questions & Answers **Q: Who has used this door in a cold winter climate? I am in Denver and want something effective in our winter months.** A: I live in FL and while it is not cold here, it IS mega hot and we get the tropical storm level winds. My door has held up against the worst storm and has never blown open or let rain in. Since it performs so well in the extreme heat, I would assume it would also perform well in extreme cold. I'm interested in moving to CO, so update us all on the winter performance, please! **Q: How tall is the opening for the doggy door? My golden doodle is 30 inches.** A: (From the manufacturer’s site) The sizes of the flaps are: Small-6"w x 11"h Step over range 3"-5" Medium-8"w x 15"h Step over range 3"-7" Large-10"w x 19"h Step over range 3”-9" XLarge-12"w x 23"h Step over range 3"-11" Measuring your pet: To determine the height you need: Measure your pet from the ground to the highest point of the back. Make sure that they will be able to step through the flap when it is placed so that the top is at least 1" above that highest point of the back. (Flap height + step over height = top of flap.) To determine the width, do not measure your pet. Instead, open your sliding glass door 6", 8", 10", or 12" to determine the narrowest that they can fit through. **Q: Does the bronze color fade in the heat/sun?** A: Nope, not mine **Q: Hello ! My inside track is 81". Would this door be a good fit for my sliding door...?** A: This panel has a maximum height of 80.25", however there is a channel in the top where you can actually slip in a piece of wood to make up for the small wiggle room. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Dog Door *by T***I on June 13, 2025* We have been very pleased with this patio insert doggie door. Our dogs fly in and out of it and it stays firmly in place. It was easily installed. ### ⭐⭐⭐⭐⭐ Super easy to install *by S***N on May 20, 2025* Super easy to install ### ⭐⭐⭐⭐ Sturdy and attractive *by A***M on December 12, 2024* The media could not be loaded. Excellent product. The magnetic flap closure is strong, which is good for weather proofing, but it took my dogs a little longer to get used to than our past doggie door. It’s cold outside now but this door is keeping it at bay. The lock provided was too small for our slider track but we easily got another at a local hardware store. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ie/products/126820256-thermo-panel-pet-door-for-sliding-glass-doors-heavy-duty](https://www.desertcart.ie/products/126820256-thermo-panel-pet-door-for-sliding-glass-doors-heavy-duty) --- *Product available on Desertcart Ireland* *Store origin: IE* *Last updated: 2026-06-05*