In addition to good and efficient water regulator properties no nose knob with fast locking media: Compressed air Operating temperature: -20 ... 80 ° C filter element: 40.00 μm drainage type: automatic drain overflow / non-overflow : Overflow gauge ports: Rc1 / 8 filter bowl: aluminum knob: acetal resin thermoplastic elastomers: synthetic rubber filter element: sintered polypropylene Body: Zinc Bonnet: aluminum Brand: Olympian Plus