(4) Breast pump valves for Philips Avent Manual, Single Electronic and Twin Electronic Breast Pumps, WILL NOT work with the newer Philips Comfort Pumps., BPA free; Complies with US FDA regulation for plastics that contact foods, Diswasher toprack safe; Steam safe for sterilization; Satisfaction guaranteed or your money back, Cleaning note: Wash this piece with hot, soapy water. It is not advisable to insert any object into the valve opening to clean it. This may tear or stretch the part resulting in poor performance. Check the valve frequently for tears.
Maymom Pump Valves for Philips AVENT ISIS Breast Pumps; Duckbills to Replace Philips AVENT Valves Used in Manual, Single Electric Breastpump and Twin Electric Breast Pumps Valves (aka Avent Duckbills or Philips Valves or Avent ISIS Valves); 4 Pieces in Retail Package (Factory Sealed).