The FHP pressure filter series are for in-line mounting in hydraulic and lubricating oil circuits up to maximum 420 bar operating pressureFilter head: cast iron, connecting thread G ½" or G ¾", bowl: steel, NBR seals, optional: bypass valve: brass (6 bar ± 10%)Housing compatible with mineral oils to ISO 2943, aqueous emulsions,synthetic fluids, water and glycolElement material: resin impregnated paper media (P),inorganic microfiber (A) or stainless steel mesh (M)Filter elements with NBR seal compatible with mineral oils to ISO 2943,aqueous emulsions, synthetic fluids without HS-HFDR-HFDS-HFDU-fluids,water and glycolOptional FPM seals for HS-HFDR-HFDS-HFDU fluids to ISO 2943working temperature -25°C - +110°C