Efficient cooling solution This AC hose insulating sleeve helps keep heat inside the exhaust hose, preventing warm air from entering your living space and helping maintain a cooler indoor environment on hot summer days. Compatible sizing Dimensions: 59 inches long and 21 inches wide. It fits most standard exhaust hoses with diameters of 5 inches or 9 inches from various manufacturers, adding compatibility to your cooling setup. Simple installation Install by stretching the hose, wrapping it with the insulation sleeve, and securing both ends with elastic bands for a snug fit. The sleeve remains in place without slippage at bends when connected to your AC unit. Materials Made from three layers of insulation fabric that are thick and flexible. This design accommodates most air conditioner hoses while providing strong protection against heat loss. Use scenarios In a room with a window air conditioner, the sleeve helps reduce heat transfer from the exhaust hose to the living space, contributing to a more comfortable environment. In apartments or dorm rooms with limited space, the sleeve minimizes heat intrusion around the hose and helps maintain cooler surroundings. In RVs, campers, or small studios using portable AC units, the sleeve reduces heat leakage and supports more efficient cooling.