Ezbzyz Filter Air Relief Gauge Adapter DEX2400S + Pressure Gauge ECX270861 + O-Ring Set for Filter Relief Valve Stem DEX2400Z3A - Replacement Combo by MyPoolYard for Select Hayward Pool Filters - ‎‎LeeChung LLC USA, DEX2400S +ECX270861+DEX2400Z3A

• [APPLICATION] Suitable for Hayward Microcrystalline Glass Filter, Hayward Pro Series Commercial Sand Filter, Hayward Pro Series Plus Sand S311SC, S311SXV, S360SX, Hayward Superstar Transparent Series, 2000-5000 and 4500-5500 Series Filters [Package Included] ECX270861 Pressure Gauge,DEX2400S Relief Valve/Gauge Adapter Assembly,DEX2400Z3A O-Ring for Relief Valve Stem (Set of 3). [Wide Application] This swimming pool accessories replacement is engineered for smooth operation, experience versatility, and functionality, offering you a smooth using experience for maintaining your pool's filtering system, you can take them as gifts for people who need. [ NOTE] Before servicing pool and spa water circulation system, all system and pump controls must be in off position and filter manual air relief valve must be in open position. [ Satisfaction Guarantee] If you have any questions about our Ezbzyz products please contact us at first time. We are glad to solve the problem you meet .