Amazon.com: DERNORD PTFE (Teflon) Tri-Clamp Gasket O-Ring - 3 Inch Style Fits OD 91MM Sanitary Pipe Weld Ferrule (Pack of 1) : Industrial & Scientific
uxcell PTFE Flat Washers 12mm OD 8mm ID 2mm Thickness Sealing Gasket for Faucet Pipe Water Hose, White, Pack of 20: Amazon.com: Industrial & Scientific
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