1/2", 10.9 gallon, thermal expansion tank, designed to absorb hot water expansion in closed heating systems, factory precharged at 12psi, steel shell, butyl diaphragm
Existing reviews
Repair Outcome
5
Ended up ordering this because the older unit needed replacement part. Needed basic hand tools only. No leaks or issues noticed so far. Part quality feels reasonable compared to original one.
Guest|11/19/2025 8:36 AM
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1/2"10.9GalVertThermoExp.Tank For Honeywell Part# TAXV-020