Amtrol designed the first expansion tank in 1954 and is now the market leader. EXTROL has become the world's leading expansion tank with its pre-pressurized technology. It has a unique diaphragm design that will not stretch or fold. It also maintains a closed system for optimal efficiency and longevity.
SupplyHouse.com has any size EXTROL tank you need, as well as a large selection of other Amtrol lines including FILL-TROL, Radiant EXTROL and Therm-X-TROL tanks. Visit our expansion tanks category to find the right tank for your system.
