The Zilmet Solar-Plus expansion vessel is manufactured according to the PED 97/23 EC and EN 13831 standards. It is designed for solar systems according to DIN 4757 and EN 12977. The vessel is equipped with a special solar membrane designed as a diaphragm, which separates the gas from the solar liquid. It holds a capacity of 18 litres.

• Has a uniquely designed Zilan membrane