Model Number
ONAY001
6 liter
Diaphragm expansion vessels for combi and heating systems — 90+ models. The vessel stores water expanded by heating in the system; our products carry a 2–5 year
Diaphragm expansion vessels for combi and heating systems — 90+ models. The vessel stores water expanded by heating in the system; our products carry a 2–5 year warranty depending on diaphragm quality.
Talk to our engineering team for custom manufacturing beyond 90+ standard models.