Feature: 1. Airtightness is good, which can prevent the aquatic environment from backflowing and leak-free. 2. Made of high strength brass and can withstand certain pressure shock. 3. The valve body is marked with an arrowhead, which is convenient to identify the direction of average flow and easy to install. 4. The swing type rubber check valve is suitable for domestic water pipe network and is often used for domestic water meters. 5. Unidirectional flow makes the installation position unlimited and can be installed on horizontal, vertical or inclined pipelines. Specifications: Item Type: Check Valve Material: Brass Nominal Diameter: Approx. 15mm / 0.6in Rated Pressure: 1.6MPa Connection Form: Thread Flow Direction: Unidirectional Structural Form: Swing Type Suitable Medium: Water Pressure Environment: Normal Pressure Package List: 1 x Check Valve 1 x Circle sealing