uxcell Fluorine Rubber O-Rings, 12mm OD 10mm ID 1mm Width FKM Seal Gasket for Machinery Plumbing, Green, Pack of 20: Amazon.com: Industrial & Scientific
uxcell Fluorine Rubber O-Rings, 5mm OD 3mm ID 1mm Width FKM Seal Gasket for Machinery Plumbing, Green, Pack of 30: Amazon.com: Tools & Home Improvement
uxcell Fluorine Rubber O Rings, 5mm OD, 3mm Inner Diameter, 1mm Width, Seal Gasket Black 50Pcs: Amazon.com: Industrial & Scientific