10PCS Fluorine rubber Rings Black FKM O ring Seal 1.8mm Thickness ID1.8/3.55/4/4.5/4.87/5/5.15/5.3/5.6mm O-Ring Seal Gasket.-.

10PCS Fluorine rubber Rings Black FKM O ring Seal 1.8mm Thickness ID1.8/3.55/4/4.5/4.87/5/5.15/5.3/5.6mm O-Ring Seal Gasket.-.

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