[Comprehensive Usage Scenarios]Suitable for above-ground pools, installations, and spa facilities, ensuring a safe and controlled water circulation environment.This versatile check valve is ideally suited for a broad range of applications, encompassing indoor plumbing systems for seamless water flow management, outdoor irrigation systems that maintain efficient water distribution, as well as sophisticated sprinkler setups for precision lawn care. [180-Degree Functionality]The 7305 check valve represents a highly professional pool accessory, engineered to facilitate unidirectional water flow. Its primary function lies in preventing the reversal of water flow, a crucial feature that safeguards against backflow contamination and maintains the integrity of your water systems. [Universal Plumbing Compatibility]Designed with versatility in mind, this check valve seamlessly adapts to both 2inch and 2½inch pipe diameters. For 2inch pipes, it offers a slip-fit connection that simplifies installation. For 2½inch pipes, a compatible 2½inch pipe coupling is required to achieve a secure and leak-proof joint, ensuring compatibility across plumbing setups and facilitating seamless integration into existing systems. Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:Photo Color Material:plastic Package Contents: 1 x Check Valve 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.