Membranes made of synthetic EPDM rubber, which are elements of hydrophore tanks. The membrane separates the space in the tank occupied by water from the space occupied by air. The diaphragms were manufactured in Italy according to the highest European standards. Available sizes: 24L, 35-50L, 80L, 100L, 150L.
The diaphragm of the 150L PION/POZ tank has 2 holes.