Specification Brand : Maymom BulletPoint1 : CONTENT: Membrane x2, Duckbill x2; Replacement parts Compatible with Momcozy S9/S10/S12 wearable pump; FEISIKE CUP and many other wearable pump. Not original Momcozy duckbill valve and silicone diaphragm. BulletPoint2 : Built to last. Maymom offers 3-month replacement warranty on this valve. Contact seller for replacement. BulletPoint3 : Worn or torn valves may contribute to decreased suction and/or milk backing up in tubing BulletPoint4 : Made from BPA free material (silicone). BulletPoint5 : Also compatible with many wearable pump on the market. See the dimensions (photos) of the products to determine compatibility BulletPoint6 : Clean and Sanitize: Dishwasher toprack safe. Can be sanitized with water steam, boiling water or microwave-steam bags.The parts should be washed and sanitized prior to first use. They should continue to be washed after each use and sanitized once daily Color : White, for Momcozy Tsrete, With Membrane ExternallyAssignedProductIdentifier : 4713530095441 ExternallyAssignedProductIdentifier1 : 0717298620802 ExternallyAssignedProductIdentifier2 : 717298620802 IncludedComponents : Duckbill IsExpirationDatedProduct : 1 ItemName : Maymom Duckbill Valve & Silicone Diaphragm Compatible with Momcozy S9/S10/S12, FEISIKE Cup 2011 Version, TSRETE Wearable Breast Pump; Replacement Pump Parts for Wearable Pumps, 2pc ItemPackageDimensions_Height : 9.6 centimeters ItemPackageDimensions_Length : 3.1 centimeters ItemPackageDimensions_Width : 6 centimeters ItemTypeKeyword : electric-breast-feeding-pumps Manufacturer : Maymom Material : Silicone MaterialTypeFree : BPA Free ModelName : duckbill ModelNumber : 105 NumberOfItems : 4 PackageLevel : unit PartNumber : F105-D ProductDescription : Maymom pump parts compatible with Momcozy S9/S10/S12 and many other wearable breastpump on the market. ProductSiteLaunchDate : 2019-03-21T12:09:15.882Z Size : 23mm Flange Style : Flange SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnitCount : 1 UnspscCode : 42230000 Voltage : 5 volts