- This package includes 6 high-quality air release valves, each equipped with a durable O-ring for a secure fit. These valves are compatible with C100, C250, C500, C750 cartridge filters, as well as DE filters with extended cycle EC30 and EC40 series, and EC50A / AC series. - Designed for reliability, these well-crafted air release valves are strong and robust, ensuring optimal performance. The smooth surface and threaded edges make handling easy, preventing any sticking or jamming during installation or maintenance. - Key Benefits: - Prevents air buildup in your filtration system, ensuring efficient operation and prolonging the lifespan of your pool equipment. - Compatible with a wide range of filter models, providing versatility and convenience for pool owners. - Easy to install and maintain, allowing for quick replacements without the need for professional assistance. - Use Scenarios: - Ideal for routine maintenance of residential pools, keeping your filtration system running smoothly and efficiently. - Suitable for use in commercial pool settings, where consistent performance and reliability are critical. - Perfect for DIY pool enthusiasts looking to upgrade or replace their air release valves for enhanced performance. - With these air release valves, you can trust that your filtration system will operate at its best, providing clean and clear water for your pool.