its FESTO out looking design, very good quality and good price Compressed air MINI/MIDI:Diaphragm type regulator;MAXI:Piston regulator; Pipe mounting or foot mounting Vertical ±5° G1/8,G1/4,G3/8,G1/2,G3/4,G1 1~16bar 1.5~12bar 0.5~12bar / 0.5~7bar 40μm / 5μm 22ml 0~60°C Housing:Zinc die-casting;Sealing:NBR;Adjusting knob??POM