-65ºF to +275ºF 0 to 7000 PSI Hytrel: Petroleum based fluids, water base fluids (HWBF), phosphate ester fluids, some chlorinated fluids and solvents 180ºF in water and water based fluids. (Available with Fluorocarbon (FKM) 75 or Nitrile (N70) O-ring expander.)