Features: This efficient air relief valves for pool filter sand tanks quickly releases excess gas to prevent pressure buildup and equipment damage, featuring copper construction for enhanced longevity and corrosions resistance in pool systems. Constructed from copper, the valves provides superior corrosions resistance and extended durability compared to plastic alternatives, ensuring stable performances and reduced maintenance needs for pool equipment. Ideal for homeowners with frequently used pools, enthusiasts, and public facilities like gyms or hotels, it caters to users seeking easy installation and long term pool equipment maintenance solution. Suitable for diverse environments including residential pools, commercial swimming facilities such as hotels, it ensures stable pressure management in high usage setting. With consistent performances under pressure, this air relief valves supports smooth water circulation, boosting safety and comfort in any pool application while being suitable for various filter systems. Specifications: Component: Copper Size: Approx. 5.06x5.23inch(12.8x13.2cm) Package Includes: 1x Air Relief Valves note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color from the item.