Extreme Temperature & Chemical Resistant FFKM Kalrez 4079 O-Rings | USA Sealing | MISUMI
Kurt J. Lesker Company | Perfluoroelastomer (FFKM) O-Rings (0.040-0.070 Section) | Enabling Technology for a Better World
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