Thermal expansion water heater safety tank, steel outer shell, polypropylene lined water reservoir, heavy duty butyl diaphragm that flexes, leak proof precharged air chamber, includes saddle valve, reduces pressure build-up and harmful pressure
2 gallon thermal expansion water heater safety tank, steel outer shell, polypropylene lined water reservoir, heavy duty butyl diaphragm that flexes, leak proof precharged air chamber, includes saddle valve, reduces pressure build-up and harmful pressure spikes in closed water systems, temporarily absorbs expanded water overflow. |