770pcs Rubber O Ring Assortment Kits 18 Sizes Sealing Gasket Washers Made of Nitrile Rubber NBR by HongWay for Car Auto Vehicle Repair, Professional Plumbing, Air or Gas Connections: Amazon.com: Industrial &
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OR 3x1.5 /4x1.5/4.5x1.8/5x2 /4.9x2/6x2/7x2/5x1.9/16x2/8.5X2.5 Oring ID x CS PU90 ShA O-Ring Seals/ Urethane Polyurethane O-Ring