AIVOOF 4" Metal O-Ring, 2 Pack 304 Seamless Welding Stainless Steel Rings Heavy Duty Smooth Solid Multi-Purpose Big Ring for for Crafts, 10mm x 80mm: Amazon.com: Industrial & Scientific
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327 Silicone O-Ring, 70A Durometer, Red, 1-3/4" ID, 2-1/8" OD, 3/16" Width (Pack of 5): O Ring Seals: Amazon.com: Industrial & Scientific
Amazon.com: 30 Pieces Replacement O-Rings Sealing Ring and Garden Hose Washers for 3/8 inch Quick Connector 3/4 inch Standard Garden Hose : Patio, Lawn & Garden