Hayward DEX2400Z3A O-ring Replacement Set for Filter Relief Valve Stem Sku: HAY-DEX2400Z3A-HZ91 This is a brand new part comes with a full manufacturer warranty!!! This sale transaction is for only this part number: DEX2400Z3A. This o-ring set is designed to use with Hayward Pro Series high rate sand filter models S210SV, S244SV and also compatible with Super Star-Clear cartridge filter models C2000, C3000, C4000, C5000. Also fits Micro-Clear vertical grid D E filter. Features: O-ring replacement set Fits hayward pro series high rate sand filter models s210sv, s244sv Also fits hayward super star-clear cartridge filter models c2000, c3000, c4000, c5000 Also fits Micro-Clear vertical grid D E filter TERMS OF SALE: If, after receiving this item you discover that it was not the one you wanted, simply return it for a full refund within 14 days. You will have to pay for the return shipping charges. Refund is void if you have installed, used or damaged the item in any way. Item must be returned with its original box, packing materials and instructions. Payment via PayPal must be received within 3 days of transaction and prior to shipping. SHIPPING: Shipping charge will be based upon location. Please use the shipping calculator or request a shipping quote. International buyers: Customs fees, duties, taxes, tariffs other fees are your responsibility. Arrival time will depend on your location. If you have any questions, feel free to ask. Thank you for visiting!