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Gray cylindrical hydronic expansion tank with Zilmet logo and rounded top, mounted on base feet.

Zilmet ZHT105 27.7 Gal Cal Pro Hyrdronic Expansion Tank 3/4" NPT Connection

Regular price $444.68
Sale price $444.68 Regular price $0.00

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Supporting larger hydronic systems, the ZHT105 expansion tank absorbs pressure fluctuations caused by water heating cycles, protecting boilers, pumps, and valves from stress. The 27.7-gallon capacity accommodates multi-zone or high-volume systems, while the carbon-steel shell provides exceptional structural strength. A pre-charged diaphragm maintains stable operation and long-term reliability under constant cycling. Ideal for commercial or heavy-duty residential applications.