--- product_id: 540847828 title: "IKSTAR Portable AC Window Seal Kit 400CM (157\") – Universal No-Drill Window Vent for Casement, Crank & Skylight Windows – Adjustable Zipper Seal for Single or Dual Hose Portable Air Conditioners" brand: "ikstar" price: "VT14999" currency: VUV in_stock: true reviews_count: 5 category: "Ikstar" url: https://www.desertcart.vu/products/540847828-ikstar-portable-ac-window-seal-kit-400cm-157-universal-no store_origin: VU region: Vanuatu --- # Tool-free, easy installation & removal Reusable & eco-friendly design 78% boost in cooling efficiency IKSTAR Portable AC Window Seal Kit 400CM (157") – Universal No-Drill Window Vent for Casement, Crank & Skylight Windows – Adjustable Zipper Seal for Single or Dual Hose Portable Air Conditioners **Brand:** ikstar **Price:** VT14999 **Availability:** ✅ In Stock ## Summary > ❄️ Seal the heat out, keep the cool in — your AC’s new best friend! ## Quick Answers - **What is this?** IKSTAR Portable AC Window Seal Kit 400CM (157") – Universal No-Drill Window Vent for Casement, Crank & Skylight Windows – Adjustable Zipper Seal for Single or Dual Hose Portable Air Conditioners by ikstar - **How much does it cost?** VT14999 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/540847828-ikstar-portable-ac-window-seal-kit-400cm-157-universal-no) ## Best For - ikstar enthusiasts ## Why This Product - Trusted ikstar brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Eco-Smart & Reusable:** Sustainable design that’s easy to clean and reuse season after season—good for your wallet and the planet. - • **Maximize Your AC Power:** Seal gaps to increase cooling efficiency by 78%, slashing energy waste and bills. - • **Durable & Weather-Resistant:** Made from thickened translucent material with 4 zipper settings to block heat, rain, and outdoor irritants. - • **Effortless Setup, Zero Damage:** Install in minutes without drills or tools; leaves no marks and keeps windows fully functional. - • **Universal Fit for Casement Windows:** Compatible with most casement and skylight windows up to 157" perimeter—your go-to AC seal solution. ## Overview The Upgrade Portable AC Window Seal is a versatile, reusable sealing solution designed for casement and skylight windows up to 157" perimeter. It boosts portable AC cooling efficiency by 78% by eliminating air gaps, installs easily without tools or damage, and features durable, weather-resistant materials with adjustable zippers. Perfect for energy-conscious professionals seeking a sleek, eco-friendly way to keep their living spaces cool and comfortable. ## Description Window Seal hose Review: Held up in full sun for entire summer. If you shut off your ac when it is humid, the adhesive may release on one side. We found that reinforcing with weather seal tape addressed the issue. It gives enough extra that you can easily fit it in a window. I recommend installing from top to bottom and on the straightest part of your window first. It is not hard to install, but it depends on your ability to peel carefully and how well you have cleaned and prepared the area. It did a good job of keeping the heat out, but I recommend also purchasing an insulating sleeve for the AC unit inside to get the full benefit. It is the same thickness aso one of those stuff in a tiny pouch windbreakers. So it's thin, but does what it needs to do. Good value for the money. Review: Not easy to figure out how to use an ac unit in a window like this! We have an old house so these crank completely out. So both sides need to be sealed. It wasn’t difficult to install, just use the adhesive to apply all around the window frame and then velcro the plastic pieces together. It doesn’t look the most attractive from the outside but it’s better than dying of heat! There’s normally No leakage but if there is a heavy rain, the way it seals together on the top of the window creates a pocket… so it will start to get filled with water and can leak down the sides a bit. How to solve that is to raise it up making a pitch in the plastic so it drains off the sides so it won’t collect there. The zipper opens large enough to attach the hose through. It really is the best solution for this weird type of window. Ok, the only one! Haha ## Features - Increase Coling Efficiency by 78%: If you're using a portable air conditioner to keep your home cool, you may be experiencing reduced efficiency and wasted energy due to gaps between the unit and your window. By sealing the gap between your air conditioner and window, this ac seal prevents air from entering or escaping, resulting in a more efficient cooling system.You will Get a cooler and more comfortable living space while saving money on your energy bills. - The 2024 Upgrade AC Window Seal: It provides a more secure and efficient seal compared to AC window vent kits. Compared to traditional kits, The portable ac window seal is also reusable, eco-friendly, and easy to install without any tools. In addition, the AC unit window seal is compatible with a wider variety of window types and sizes than traditional window kits, making it a versatile solution for window-mounted air conditioners. - Easy to Install - Disassembly Leaving No Traces: The portable AC casement window seal is designed to be easy to install, without the need for window kits, hose adapters, or additional tools. It doesn't require any drilling into the window frame - just stick the, then stick the product, tie it with a fixed tie.The window can still be closed and open easily with the seal in place.And it can be easily removed and reused next year. - Universal & Most Popular Go-to Choice: Supports single and dual-hose air conditioners. Suitable for bottom-hung windows, or skylights, it fits with most windows without any issues. Not Suitable for Sliding Windows, Vertical Push-pull Window, or Stereo Revolving Windows. Please PAY ATTENTION that any window with a perimeter longer than 400cm [157"] is not compatible with this product. BEFORE PURCHASING,Please Measure the length of your window to ensure a proper fit. - Long-Lasting Durability for Over 3 Years: The casement window air conditioner seal is made of the latest translucent thickened air conditioning material, with 4 zipper settings, can be a very firmly fixed exhaust port, and sealed windows, to prevent pesky outdoor irritants and rainwater entry. The design of the makes it easy to disassemble, even if dirty. A gentle pull can be removed for washing/machine washing. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BLH4Y374 | | Batteries required | No | | Customer Reviews | 3.8 3.8 out of 5 stars (207) | | Date First Available | 19 December 2022 | | Included components | ac window kit, ac window seal, sliding door air conditioner kit, window air conditioner installation kit, window venting kit for portable ac | | Item model number | 4M | | Product Dimensions | 2.54 x 2.54 x 2.54 cm; 322 g | ## Images ![IKSTAR Portable AC Window Seal Kit 400CM (157") – Universal No-Drill Window Vent for Casement, Crank & Skylight Windows – Adjustable Zipper Seal for Single or Dual Hose Portable Air Conditioners - Image 1](https://m.media-amazon.com/images/I/611lXPZDkxL.jpg) ## Questions & Answers **Q: Will this fit my casement or crank-out window?** A: Yes. It is designed for casement, crank-out, push-out, skylight and other non-sliding windows. Please measure your window before ordering. **Q: How do I choose between the 300CM and 400CM size?** A: Measure the total perimeter of your window frame. Choose 300CM for up to 118", and 400CM for up to 157". Pick the closest larger size. **Q: Can it work with single hose and dual hose portable AC units?** A: Yes. The adjustable zipper opening works with both single and dual hose portable air conditioners, as well as many dehumidifiers and tumble dryers. **Q: Do I need tools or drilling to install it?** A: No tools or drilling required. Clean the frame, apply the hook tape, attach the seal, place the hose through the zipper, and close it around the hose. **Q: Does it help keep hot air from coming back inside?** A: Yes. It helps seal the open window area around the exhaust hose, reducing hot air backflow and supporting more efficient summer cooling. ## Customer Reviews ### ⭐⭐⭐⭐ Review *by M***T on 20 August 2025* Held up in full sun for entire summer. If you shut off your ac when it is humid, the adhesive may release on one side. We found that reinforcing with weather seal tape addressed the issue. It gives enough extra that you can easily fit it in a window. I recommend installing from top to bottom and on the straightest part of your window first. It is not hard to install, but it depends on your ability to peel carefully and how well you have cleaned and prepared the area. It did a good job of keeping the heat out, but I recommend also purchasing an insulating sleeve for the AC unit inside to get the full benefit. It is the same thickness aso one of those stuff in a tiny pouch windbreakers. So it's thin, but does what it needs to do. Good value for the money. ### ⭐⭐⭐⭐⭐ Review *by T***K on 14 October 2025* Not easy to figure out how to use an ac unit in a window like this! We have an old house so these crank completely out. So both sides need to be sealed. It wasn’t difficult to install, just use the adhesive to apply all around the window frame and then velcro the plastic pieces together. It doesn’t look the most attractive from the outside but it’s better than dying of heat! There’s normally No leakage but if there is a heavy rain, the way it seals together on the top of the window creates a pocket… so it will start to get filled with water and can leak down the sides a bit. How to solve that is to raise it up making a pitch in the plastic so it drains off the sides so it won’t collect there. The zipper opens large enough to attach the hose through. It really is the best solution for this weird type of window. Ok, the only one! Haha ### ⭐⭐⭐⭐ Review *by R***N on 3 July 2025* The graphic on the ad implies there is a fixed form to insert two hoses. Actually it's just a series of zippers that lets you place the hoses in a convenient way. It does keep out moisture - as long as you make sure that the seal is tight on the tape side and the velcro side. Using the supplied zip ties helps to secure the zipper around the end of the hose, but self-sealing velcro tape wrapped around the end of the zipper to cover any opening helps to keeps insects out, and is less expensive to replace than zip ties. Reasonably priced, useful instructions and videos, likely to last several seasons. ## Frequently Bought Together - 400CM (157") Portable AC Window Seal Kit for Casement Crank Skylight Windows, Newest Waterproof Insulated Window Vent Kit with Flexible Zipper Design for Single&Dual Hose Air Conditioners, No Drilling - XFasten Transparent Window Weather Sealing Tape, 2-Inch x 30 Yards (50.8mm x 27.43m), Clear Window Draft Isolation Sealing Film Tape, No Residue - BLACK+DECKER Smart Portable Air Conditioner, 12,000 BTU for Rooms up to 550 Sq. Ft., Smart Portable AC with Follow Me Remote and Window Kit, BPACT12WT, White --- ## 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.vu/products/540847828-ikstar-portable-ac-window-seal-kit-400cm-157-universal-no](https://www.desertcart.vu/products/540847828-ikstar-portable-ac-window-seal-kit-400cm-157-universal-no) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-06-06*