Features 1. Our portable AC window kit made of high quality PVC material, anti-extrusion, anti-aging, can let you enjoy every summer cool. Suitable for sliding vertical / horizontal windows. 2. The sealing performances of this AC window kit is newly upgraded, which can tightly fit the window without the need for sealing tape, making the gap between the plate and the window almost zero, effectively isolating the leakage of cold air in the room. 3. Confirm Outlet Diameter: Our sliding AC vent kit exhaust coupler is approximately 5.1" in diameter. Portable AC Window Kit has a humanized rail design, which is easy to slide the seal plates, and fast lock. No tools required, length adjustment can be completed in 5 seconds. Adjustable length range: 17 inches-55 inches. 4. Package Includes: Portable air conditioner window kit Includes: 2 x Outer Plates, 2 x Inner Plates, 1 x Exhaust Hose Adaptor, 1 x Sealing Tape, 4 x Butterfly Screws. 5. No tools are required! Simply insert the plate into the window track and connect it to the air conditioner hose. It is easy to install, disassemble, and can be used year after years. Specification Material: PVC Color: White Size: 16-43-140cm Weight: 1300 g Package Include: 4x Plates 1x Exhaust Hose Adaptor 4x Butterfly Screws 1x Sealing Tape