Thermal Insulation: This air conditioning hose insulation effectively retains heat inside the exhaust hose, reducing the backflow of hot air into the room. It helps lower the load on the air conditioner, improves cooling efficiency, and maintains a cool and comfortable indoor environment during the summer. Universal Size: This insulated portable air conditioner hose cover is approximately 150 cm long and 53 cm wide. It fits exhaust hoses with diameters of approximately 12.7 cm and 14.5 cm and is compatible with most brands on the market. The cover is tight, versatile, and provides peace of mind. Easy Installation: Remove and extend the exhaust hose. Wrap it with the air conditioning hose cover and secure it with the double hook-and-loop fastener. Then, secure both ends with the elastic bands and reconnect the hose to the air conditioner. Even with an almost 90° bend, the cover stays firmly in place and does not easily slip. Flexible and Durable: This air conditioning hose insulation is made with a high-quality, three-layer insulating structure, providing excellent thermal insulation and durability. It fits various air conditioning hoses, ventilation ducts, and air vents, making it an ideal accessory for home cooling in the summer. Removable and Washable: This protective cover for air conditioning exhaust hoses is removable and washable. After drying, it can be reused. Its foldable design allows for easy, space-saving storage. The package includes one insulating cover and four adjustable elastic bands.