--- product_id: 507148706 title: "Upgrade Portable AC Window Seal - Casement Window Air Conditioner Seal works with Mobile Air-Conditioning - Keep Hot Air Out - Keep House Cool, Easy to Install and Detachable-118\"（300CM）" price: "¥3136" currency: JPY in_stock: false url: https://www.desertcart.jp/products/507148706-upgrade-portable-ac-window-seal-casement-window-air-conditioner-seal store_origin: JP region: Japan --- # Energy-saving seal 118-inch universal fit Machine washable & reusable Upgrade Portable AC Window Seal - Casement Window Air Conditioner Seal works with Mobile Air-Conditioning - Keep Hot Air Out - Keep House Cool, Easy to Install and Detachable-118"（300CM） **Price:** ¥3136 **Availability:** ❌ Out of Stock ## Summary > ❄️ Keep your cool without compromise—seal the heat out, save energy, and chill smarter! ## Quick Answers - **What is this?** Upgrade Portable AC Window Seal - Casement Window Air Conditioner Seal works with Mobile Air-Conditioning - Keep Hot Air Out - Keep House Cool, Easy to Install and Detachable-118"（300CM） - **How much does it cost?** ¥3136 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/507148706-upgrade-portable-ac-window-seal-casement-window-air-conditioner-seal) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durable & Reusable:** Made from thickened, waterproof material with 4 zipper settings for a snug, weatherproof seal. - • **Seamless 118-inch Fit:** Fits most casement & crank windows up to 300cm perimeter—no drilling required! - • **Effortless Installation:** Velcro-based setup means zero tools, zero damage—install or remove in minutes. - • **Universal Compatibility:** Works with top portable AC brands like DeLonghi, LG, Midea, and Shinco for ultimate versatility. - • **Maximize Cooling Efficiency:** Blocks hot air infiltration to keep your space cooler longer and slash AC energy bills. ## Overview The IKSTAR 3M Portable AC Window Seal is a 118-inch, easy-to-install, reusable air conditioner window kit designed for casement and crank windows. It prevents hot air from entering your room, enhancing cooling efficiency and reducing energy costs. Made from durable, washable materials with a secure Velcro system, it fits most portable AC units and requires no drilling or permanent modifications. ## Description Buy Upgrade Portable AC Window Seal - Casement Window Air Conditioner Seal works with Mobile Air-Conditioning - Keep Hot Air Out - Keep House Cool, Easy to Install and Detachable-118"（300CM）: Accessories - desertcart.com ✓ FREE DELIVERY possible on eligible purchases ## Features - 𝙒𝙞𝙩𝙝 𝟯𝙈 (𝟭𝟭𝟴") 𝙒𝙞𝙣𝙙𝙤𝙬 𝙎𝙚𝙖𝙡,𝙆𝙚𝙚𝙥 𝙃𝙤𝙩 𝘼𝙞𝙧 𝙊𝙪𝙩: When you use this portable ac window kit, you can easily put the portable AC tube out of the window. This neither blocks the light coming from the window nor does it require any disruption of construction to the window. Easily helps maintain the temperature of your choice, no matter how hot it is outside! Keeps you cool all summer long! - 𝙀𝙣𝙚𝙧𝙜𝙮 & 𝘾𝙤𝙨𝙩 𝙎𝙖𝙫𝙞𝙣𝙜: Portable window air conditioner seal kit prevents warm air from entering your room, by creating a “closed environment” which keeps your room cool longer and significantly reduces the energy consumption of your air conditioner, saving you money on electricity and solving the worries caused by central air conditioning. In addition, this unit can be washed up to put in storage and use again next year! - 𝙃𝙞𝙜𝙝-𝙌𝙪𝙖𝙡𝙞𝙩𝙮 𝙈𝙖𝙩𝙚𝙧𝙞𝙖𝙡 & 𝙍𝙚𝙪𝙨𝙖𝙗𝙡𝙚: The crank window ac kit is made of the latest thickened air conditioning material, with 4 zipper settings, can be very firmly fixed exhaust port, and sealed windows, to prevent pesky outdoor irritants and rainwater entry. The design of the Velcro makes it easy to disassemble, even if dirty. A gentle pull can be removed for washing/machine washing. - 𝙀𝙖𝙨𝙮 𝙩𝙤 𝙄𝙣𝙨𝙩𝙖𝙡𝙡- 𝙉𝙤 𝙉𝙚𝙚𝙙 𝙩𝙤 𝘿𝙧𝙞𝙡𝙡 𝙃𝙤𝙡𝙚𝙨: This portable ac casement window seal does not need any window kits, adapters for your hose, or additional tools to install, because it does not need to drill holes in the window, just stick the Velcro, then stick the product, tie it with a fixed tie and you will never worry about falling off the exhaust pipe. It is compatible with most window types and portable air conditioners, removable & reusable, waterproof & rainproof - 𝙁𝙞𝙩𝙨 𝙬𝙞𝙩𝙝 𝙈𝙤𝙨𝙩 𝙒𝙞𝙣𝙙𝙤𝙬𝙨: Suitable for bottom-hung windows, or skylights, it fits with most windows without any issues. Not Suitable for Sliding Windows, Vertical Push-pull Window, Stereo Revolving Windows. Pay attention： Any window with the entire perimeter longer than 300cm is not suitable. PLEASE MEASURE the LENGTH of the Window BEFORE PURCHASING.suitable for dolonghi, lg, midea, shinco, ac window seal double hose universal ac window kit ## Technical Specifications | Specification | Value | |---------------|-------| | Best Sellers Rank | #1,761,300 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #5,027 in Accessories (Home & Kitchen) | | Customer Reviews | 3.7 out of 5 stars 146 Reviews | ## Images ![Upgrade Portable AC Window Seal - Casement Window Air Conditioner Seal works with Mobile Air-Conditioning - Keep Hot Air Out - Keep House Cool, Easy to Install and Detachable-118"（300CM） - Image 1](https://m.media-amazon.com/images/I/71lOBuQPCOL.jpg) ![Upgrade Portable AC Window Seal - Casement Window Air Conditioner Seal works with Mobile Air-Conditioning - Keep Hot Air Out - Keep House Cool, Easy to Install and Detachable-118"（300CM） - Image 2](https://m.media-amazon.com/images/I/71EwEM7FOsL.jpg) ![Upgrade Portable AC Window Seal - Casement Window Air Conditioner Seal works with Mobile Air-Conditioning - Keep Hot Air Out - Keep House Cool, Easy to Install and Detachable-118"（300CM） - Image 3](https://m.media-amazon.com/images/I/71k3SuzBJTL.jpg) ![Upgrade Portable AC Window Seal - Casement Window Air Conditioner Seal works with Mobile Air-Conditioning - Keep Hot Air Out - Keep House Cool, Easy to Install and Detachable-118"（300CM） - Image 4](https://m.media-amazon.com/images/I/71ef1PN+8SL.jpg) ![Upgrade Portable AC Window Seal - Casement Window Air Conditioner Seal works with Mobile Air-Conditioning - Keep Hot Air Out - Keep House Cool, Easy to Install and Detachable-118"（300CM） - Image 5](https://m.media-amazon.com/images/I/71A1e+zSUQL.jpg) --- ## 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.jp/products/507148706-upgrade-portable-ac-window-seal-casement-window-air-conditioner-seal](https://www.desertcart.jp/products/507148706-upgrade-portable-ac-window-seal-casement-window-air-conditioner-seal) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-11-15*