Window Seal for AC Unit – Window Seal For Portable Air Conditioner – Sealing AC with Zip and Adhesive Fastener – Best Way To Seal Technical Specifications: Color: White Material: Cloth Window Seal Size: 400cm (157.5in) Features: Keep the Room Cool - Window seals locck the hose between the window and the window frame to the air conditioner to prevent hot air from entering. Air conditioning can effectively cool the room and keep it cool for a short period of time. 400cm for all standard window types, mobile air conditioners and dryers, but not for moving windows or doors. .