Air-filled pressure gauge with a downward-facing 1/2" pipe thread and an 80 mm dial diameter, reading from 0 to 4 bar. Suited to district heating, hydronic and industrial water applications where a bottom entry is required. The air-filled housing gives clear needle response without the dampening of glycerine fill. Supplied under manufacturer part number 9032703, EAN 5707234041261, HS code 9026.20, country of origin Poland.