Thermal Expansion Tanks
Zilmet Hydro-Plus Potable Water Expansion Tanks
Potable water expansion tanks. NSF 61 certified. Suitable for domestic water heating systems, electric pumping, water hammer.

Zilmet Cal-Pro Hydronic System Expansion Tanks
These expansion tanks are used for heating systems. Not potable water rated.
From $59.00
Zilmet Flats Space Saving Hydronic System Expansion Tanks
Zilmet Flat expansion tanks provide both space saving and a tighter, more professional look for hydronic system expansion.
From $98.00
why buy from us?
We're engineers passionate about home ventilation and serious about customer service – so you can count on us for carefully-selected equipment and expert advice to ensure your project is a success from specification to installation.
Your call is answered by qualified people who will gladly discuss your project in detail, advise you professionally and never sell you inappropriate products.