{"product_id":"zilmet-zht105-27-7-gal-cal-pro-hyrdronic-expansion-tank-3-4-npt-connection","title":"Zilmet ZHT105 27.7 Gal Cal Pro Hyrdronic Expansion Tank 3\/4\" NPT Connection","description":"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.","brand":"ZILMET","offers":[{"title":"Default Title","offer_id":43933067804723,"sku":"ZILZHT105","price":444.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/ZIL-11070442_51b95eb8-813e-4e5c-9bfa-51eb1b3b5c3f.jpg?v=1770241305","url":"https:\/\/plumbing-deals.com\/products\/zilmet-zht105-27-7-gal-cal-pro-hyrdronic-expansion-tank-3-4-npt-connection","provider":"Plumbing Deals","version":"1.0","type":"link"}