Complete Set: Receive 5.9 inch diameter portable air conditioner exhaust hose coupler, designed for seamless extension and connection. to select the correct size for your exhaust pipe to enhance convenience and functionality in your space. Construction: Crafted from high-quality ABS plastic, this hose extender is heat- and boasts excellent sealing. Its robust design prevents breakage and deformation, ensuring a stable and long-lasting connection between your AC and exhaust hose. Enhanced Air Conditioning Efficiency: This AC hose coupling extension maintains your air conditioning hose in optimal condition. It's ideal for connecting air conditioners and exhaust hoses, improving home comfort and the efficiency of your portable air conditioning unit. Superior Sealing Capability: Featuring an effective seal, this AC exhaust hose connector prevents the intrusion of small items and external debris. This not only saves energy but also boosts the operational efficiency of your air conditioning system, making it both practical and aesthetic. Effortless Installation: Equipped with a universal thread design, this exhaust hose coupler is simple to install without the need for additional tools. Suitable for right or left-hand use, simply turn clockwise or counter-clockwise to secure the connection. Color: Grey Material: plastic Package Contents: 1 x Connection tube Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.