gulrear Heavy Duty 250cm Sliding Door AC Vent Kit, 3-Layer Thickened Thermal Barrier for Portable Air Conditioners,Thermal Seal for Portable Air Conditioner, Reflective Heat Shield & 100% Light Block — Open-Box, 36% Off

Ultimate 3-Layer Thermal Shield & Heat Reflection: Experience superior cooling with our pro-grade 3-layer insulated material. Featuring reflective aluminum foil, a high-density cotton core, and waterproof Oxford fabric, this kit acts as a robust thermal barrier. Unlike thin single-layer seals, our panel blocks 100% of sunlight and reflects intense heat outdoors, keeping your room significantly cooler

Zero-Leakage Drawstring Sleeve – Air-Tight Seal: Eliminate the cooling loss common with traditional plastic kits. Our specialized integrated hose sleeve features a heavy-duty adjustable drawstring that creates a secure, air-tight grip around your exhaust hose. By sealing the connection point completely, it prevents hot air from seeping inside and blocks outdoor debris, ensuring your portable air conditioner operates at peak efficiency all summer.

Reversible Design & 100% Blackout Privacy: Combine premium functionality with modern aesthetics. The reversible design lets you choose between the high-performance silver side for maximum heat reflection or the sleek grey Oxford side to match your decor. The ultra-thick construction provides 100% blackout privacy, making it perfect for bedrooms and home offices where blocking glare and maintaining a steady temperature is essential for comfort and sleep.

Heavy-Duty Construction & Long-Lasting Value: Invest in a durable AC window kit built to last for multiple seasons. Our ultrasonic quilted design prevents the internal insulation from shifting, while the high-density Oxford fabric shell is puncture and tear-resistant. This rugged construction withstands frequent handling and stays taut against the window, providing a premium, professional look and long-term performance that thin fabric seals cannot match.

Tool-Free & Renter-Friendly Installation: Achieve a professional-grade seal in minutes with zero tools or drilling required. This sliding door AC vent kit is the ultimate damage-free solution for apartments and rentals. The intuitive hook-and-loop system allows for quick setup and effortless removal at the end of the season, leaving no permanent marks on your window frames. It's the perfect choice for those who want maximum cooling efficiency without the hassle.

Stepless DIY Adjustment – A Custom Precision Fit: Stop compromising with pre-set 10cm gaps. Our innovative fold-to-fit design provides stepless height adjustment, allowing you to customize the seal to your sliding window or door’s exact dimensions with millimeter precision. Whether for standard windows or oversized 90" sliding glass doors, this flexible panel ensures a flawless, gap-free installation that outperforms rigid plastic plates.

gulrear portable air conditioner thickened fabric sliding door kit is crafted from a new, extra-thick three-layer insulating material, achieving 100% sealing and effectively isolating hot and cold air. The innovative thickened double-sided hose sleeve significantly reduces hot air leakage from the exhaust hose. Infinitely customizable height adjustment provides full coverage for all standard sliding door and window sizes. Compatible with all clockwise and counterclockwise exhaust hoses within the 13-16cm diameter range. Freely detachable and reusable.