Diameter: Ø500mm to Ø1.200mm
Filter bed height: between 1m and 1,2mm
Maximum pressure: 2,5 bars / 4 bars / 6 bars
Manufacturing: Poltank 3

Diameter: Ø1.050mm to Ø3.000mm
Filter bed height: between 1m / 1,2m / 1,5m
Maximum pressure: 2,5 bars / 4 bars
Manufacturing: Poltank 3 and Poltank 4

Diameter: Ø1.050mm to Ø3.400mm
Filter bed height: –
Maximum pressure: 2,5 bars / 4 bars  / 6 bars / 8 bars / 10 bars
Manufacturing: Poltank 4