Portable Air Conditioner Window Kit,39"–for Sliding Windows/Single Hung Windows,Blocks Hot Air Easy Installation,Window Vent Seal Kit Compatible with Portable AC and Dryer,Waterproof & Light-Blocking

["【Portable Air Conditioner Window Vent Kit】：By creating a completely sealed environment around your window, our window vent seal kit prevents hot outdoor air from leaking back into your room and stops your cooled air from escaping. This helps your portable air conditioner run more efficiently, reducing energy consumption and lowering your electricity bills all summer long.The matching portable air conditioners and air dryers, fit horizontal or vertical slding window only (single-hung and double-hung).","【More Airtight & Efficient】：Unlike the plastic panels that come with most portable AC units — or those thin,translucent fabric seals — our product solves the real problems.Plastic kits are hard to install, seal poorly, and often don't fit your exhaust hose size. You end up wasting time trying to match the compatibility. Thin fabric seals let light through, offer little insulation, and zipper versions leak hot air back in.We have improved on all these issues. Our upgraded seal delivers easy installation, superior airtightness, and excellent heat insulation — keeping hot air out and cool air in with zero air leakage and full light‑blocking performance.","【Superior Flexibility】:This window seal kit features black Oxford fabric on one side and silver‑coated reflective fabric on the other. We have designed two hose sleeves for maximum flexibility — you can choose either side as the outward-facing layer, and the airtight performance stays the same.Additionally, we sewed hook‑and‑loop loop material on both sides and included adhesive hook strips, allowing you to customize the size for a perfect fit on different slding windows or slding doors. This greatly improves compatibility and ensures a snug, secure installation every time.","【More Reliable Design】：The included drawstring sleeve and Double-SidedStraps securely locks your portable AC exhaust hose in place（compatible with 5″ to 6″ diameter hoses）, eliminating the constant worry of the hose slipping out or losing its seal. You can trust that your AC is venting properly every time you turn it on.","【Easily Open or Close Your Window】：Need to access your balcony, let in fresh air, or close the window during a storm?You can peel back the Velcro from the window if you need to close the window for any reason. Simply peel back the Velcro on one side to open the window, then reattach when you‘re done,making your portable AC truly portable!"]