Specification Brand : MEFONKOU BulletPoint : hot spring pillow for hot spring spas 2002-2007 BulletPoint1 : Package include:5 Pack T-Cell Salt Cell Union O-rings. BulletPoint2 : Compatible with Hayward T-15, T-9, T-5, and T-3 size T-Cells. BulletPoint3 : Replaces Parts GLX-UNION-ORING T-Cell-Union-ORing. BulletPoint4 : With an inner diameter of 2.50 inches and an outer diameter of 2.75 inches. BulletPoint5 : Choose these high-quality and durable O-rings and you’ll be able to make the most out of each of this pack’s 6 pieces of O-rings. Color : black ExternallyAssignedProductIdentifier : 00810654021999 ExternallyAssignedProductIdentifier1 : 0686754971669 ExternallyAssignedProductIdentifier2 : 686754971669 ExternallyAssignedProductIdentifier3 : 0682821174131 ExternallyAssignedProductIdentifier4 : 0682821174537 ItemDisplayDimensions_Width : 3 inches ItemDisplayWeight : 4.99 pounds ItemName : Salt Cell Union O-ring Compatible for Hayward GLX-Cell T-Cell Turbo Cell Salt Chlorination Union (5/pack) ItemPackageDimensions_Height : 21.4 centimeters ItemPackageDimensions_Length : 0.4 centimeters ItemPackageDimensions_Width : 14 centimeters ItemPackageQuantity : 1 ItemShape : Rectangular ItemTypeKeyword : swimming-pool-and-spa-replacement-parts ItemTypeName : pool fan spray water aerator Manufacturer : onlineseal Material : Synthetic Rubber Material1 : Nylon Material2 : Rubber Material3 : Stainless Steel ModelName : 3/4 Aerator ModelNumber : Salt Cell Union NumberOfItems : 1 NumberOfLabels : 20 PartNumber : T-cell ProductDescription : These O-rings are an exact fit for all cell unions of Hayward T-Cells for Hayward Goldline Salt Chlorine Generators (T-3, T-5, T-9, and T-15). These are also compatible with Hayward Sense and Dispense P-Kit, AQL-CHEM-UPG, and AQL-SS-6B-BOX wireless remote control model. These are direct replacements for Hayward part GLX-Union-ORing. Nitrile rubber also known as NBR, Buna Nitrile, or Buna-N is the material of choice for O-rings. It has high resistance to water, oils, fuels, alcohol, and other chemicals. Aside from this, Buna-N also has high tensile strength and elasticity. ProductSiteLaunchDate : 2019-04-19T07:00:00.000Z Size : 1 Count (Pack of 1) SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnitCount : 5