Features: The Swimming Pool Check Valves ensures reliable backflow prevention, compatibility with most pool systems and for high efficiency water management. Features a clear inspection lid, corrosions resistant, and easy disassembly, this valves allows quick debris removal and bidirectional flows control without lubrication. For pool maintenance professional and durability. Essential for high flows spa installations and freeze prone environment, withstands extreme temperatures while maintaining water circulation. As direct valves replacement (Model 7305), this check valves features straightforward installation—remove internal component before solvents welding to protect valves integrity during setups. Specifications: Dimension:16.36×11.89cm/6.44×4.68in Component:ABS Package Includes: 1pc Pool Check valves note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.