BUSY-CORNER 382 Pieces FKM O Ring Kit, Fluorocarbon 75A, 30 Inch Sizes, Chemical Resistant and Oil Resistance O-Rings for Various Chemicals, Hydraulic, Cylinders, Plumbing (Yellow Box, Brown Orings): Amazon.com: Industrial & Scientific
Green Fkm O Rings Id1.78mm~98.05mm*1.78mm Thickness/cs Oil Resistant Acid And Alkali Resistant Sealing Gasket Fpm O-ring - Gaskets - AliExpress