Specification Brand : TLAOISUS BulletPoint1 : Compatible with cartridge filter C100, C250, C500, C750, extended cycle DE filter EC30 and EC40 series, EC50A/ AC series. BulletPoint2 : ECX1322A Directional Vent Valve & O-Ring BulletPoint3 : The surface and thread edge of the pool filter replacement parts are smooth and round, easy to use, will not be stuck, serving you for a long time without worries. BulletPoint4 : The valve pool filters are mainly applicable for pool, sink, spa cartridge filters or other equipments to exhaust air before operating, pool filter air relief valves can make the system work well. BulletPoint5 : 0.67 x 0.35 inch/ 17 x 9 mm, Package include: 2 Packs Directional Vent Valve. Compatible with cartridge filter C100, C250, C500, C750, extended cycle DE filter EC30 and EC40 series, EC50A/ AC series. Color : black CustomerPackageType : Standard Packaging ExternallyAssignedProductIdentifier1 : 0737096977199 ExternallyAssignedProductIdentifier2 : 737096977199 ExternallyAssignedProductIdentifier3 : 00788379004590 ItemDisplayDimensions_Height : 1 inches ItemDisplayDimensions_Length : 14.4 inches ItemDisplayDimensions_Width : 5 inches ItemDisplayWeight : 10.1 pounds ItemName : TLAOISUS ECX1322A Directional Vent Valve & O-Ring for fits Hayward Star Clear Star-Clear Plus In Ground Cartridge Pool Filters Air Relief Vent Valve ItemPackageDimensions_Height : 4.699 centimeters ItemPackageDimensions_Length : 1.6002 centimeters ItemPackageDimensions_Width : 4.699 centimeters ItemPackageQuantity : 1 ItemShape : Round ItemTypeKeyword : swimming-pool-and-spa-replacement-parts ItemTypeName : valve Manufacturer : Parts-Superstore Material : Steel ModelName : ECX1322A ModelNumber : ECX1322A NumberOfBoxes : 1 NumberOfItems : 1 PackageLevel : unit PartNumber : 001 PowerSourceType : ac_dc ProductDescription : ECX1322A Directional Vent Valve & O-Ring for fits Hayward Star Clear Star-Clear Plus In Ground Cartridge Pool Filters Air Relief Vent Valve SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1