The hose connector is made of high-quality materials, providing strength and tightness. The connector is flat and smooth, not easily broken, safe and durable, and will not scratch the surface of the installation object. Professional accessory designed to connect the window sealing plate and the air conditioning exhaust hose with a diameter of 13cm or 15cm. Good air conditioning hose sealing helps reduce energy consumption. A well-structured exhaust ventilation system supports efficient cooling and may contribute to lower electricity usage. Available in multiple sizes; select the appropriate air conditioner hose adapter based on your requirements. Features a serrated bar inside the connection port between the connector and the hose, ensuring a secure fit without damaging the hose. Simply insert the hose slowly into the connector for quick and easy installation. Note: Actual color may vary slightly from the image due to differences in monitor settings and lighting conditions. A 1-3cm measurement deviation may occur due to manual measurement. Material: Reusable plastic Size: 13cm / 15cm (Optional) Package Includes: 1 x Air Conditioner Exhaust Hose Adapter