Air Conditioner Window Seal, 400cm Portable Universal Seal Kit

Max 400cm White Size: This white air conditioner window seal reaches a maximum length of 400cm, matching most casement, top-hung and tilt windows. It forms a full closed enclosure to block hot air backflow and stop cold indoor air from leaking out steadily. This air conditioner window seal perfectly seals window gaps for mobile air conditioners Energy Efficient Cooling Boost: It creates an airtight thermal barrier to speed up indoor cooling and hold low temperatures longer. Lower AC load cuts power consumption and electricity bills, while less carbon emission delivers eco-friendly daily cooling all summer. This portable universal window seal kit helps air conditioners run more efficiently and save energy Weatherproof Coated Fabric: Made of thick 210T polyester with PU waterproof coating, the material resists UV rays, rain, wind and dust. It blocks bugs and rainwater, washable under 40°C for repeated seasonal use year after year. This aircon window venting kit adopts durable waterproof fabric for long service life Zippered Residue-Free Easy Install: Dual anti-slip two-way zippers firmly lock single or double exhaust hoses without sliding. Residue-free hook-and-loop tape enables quick drill-free mounting, peeling off cleanly after seasons without damaging window frames. This ac window seal kit features simple installation without damaging window frames Wide Multi-Scene Compatibility: Fits portable air conditioners, tumble dryers and dehumidifiers for home, office, dorm and RV use. Adjustable zipper openings match different hose sizes to meet all seasonal ventilation and exhaust demands. This window kit for air conditioner suits various indoor and mobile usage scenarios.