Feature: 1. Cool Room Efficiently: This adapter attaches the exhaust hose tightly to your air conditioner unit, so in summer or winter, this product can cool your room more efficiently in less time. 2. ABS Material: Made of ABS materials (non recycled plastic processing), non toxic, tasteless, light, strong, durable, can be used for a long time. 3. Scope of Application: 5 inch portable air conditioner exhaust hose coupleris generally used for the air conditioning exhaust pipe of 130mm diameter. 4. No Tools Installation: No tools, no drilling required. Connect the exhaust hose for easy installation in portable air conditioners. 5. Good Workmanship: fine workmanship makes the products durable, not easy to damage, and greatly extend the service life. Specification: Item Type: Air Conditioning Exhaust Duct Sealing Plate Flat Mouth Interface Material: ABS Color: As Pictures Shown Weight: Approx. 145g / 5.1oz Thread Diameter: Approx. 130mm / 5.1in Product Size: Approx. 21.5x13x13.5cm / 8.5x5.1x5.3in Applicable Model: General 130mm Diameter Air Conditioning Exhaust Pipe. Package List: 1 x Connector