O-Rings EPDM Rubber 2.5mm Cross Section O Ring Seals Washer Gasket OD 6mm-160mm | eBay
10/50Pcs EPDM o Rings CS 3mm OD 10~100mm Acid and Alkali Resistance Water Resistance Friction Resistance o-Ring Black (Color : 10Pcs, Size : OD 10MM ID 4MM_CS 3.0MM): Amazon.com: Industrial & Scientific