Features EFFICIENT AND ENERGY EFFICIENT: a good air conditioning hose seal helps to reduce energy consumption, and a well-constructed exhaust system can save your electricity bill under an efficient cooling system. With toothed strips: inside the connector that connects the adapter to the hose, there are serrated strips that fit perfectly on the hose without scratching the hose. Useful features: a connection for window seal plates with oval vents and an air conditioning exhaust hose with a diameter of 5.9 inches. Scratch-resistant ABS: made of excellent ABS material, impact resistant, scratch-resistant, environmentally friendly. Easy to use: you just need to slowly insert the hose into the adapter, assemble and you are ready to use, very practical. Specification: Product Type:Air Conditioner Exhaust Hose Adapter Material: ABS Package list: 1 x air conditioning exhaust hose adapter. Small note: Install exhaust pipes with 5.9 inch diameter. Please confirm this accessory is suitable for your air conditioner before purchasing. Package List 1 x Air Conditioner Exhaust Hose Adapter