{"product_id":"taco-cx300-125-79-gallon-diaphragm-expansion-tank","title":"Taco CX300-125 79 Gallon Diaphragm Expansion Tank","description":"\u003cp\u003eThis heavy-duty expansion tank is engineered to manage thermal expansion within large-scale commercial and residential hydronic heating systems, ensuring consistent pressure control. The \u003cstrong\u003eTaco CX300-125\u003c\/strong\u003e offers a substantial 79-gallon capacity, providing a robust solution for absorbing expanded fluid and preventing unwanted pressure spikes that can damage delicate system components. By utilizing the \u003cstrong\u003eCX300-125\u003c\/strong\u003e model, installers can rely on Taco's industry-standard engineering to enhance system longevity and performance.\u003c\/p\u003e\u003cp\u003eThe unit features a high-grade internal diaphragm that creates a permanent barrier between the system water and the air cushion. This specialized design eliminates the risk of air being absorbed into the system water, effectively preventing corrosion and protecting pumps and piping from oxygen-related damage. The diaphragm construction ensures maximum operational stability throughout the heating cycle.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure Management:\u003c\/strong\u003e Designed to absorb fluid expansion during high-temperature cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir Separation:\u003c\/strong\u003e Integrated diaphragm eliminates air-to-water contact for better fluid quality.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosion Prevention:\u003c\/strong\u003e Reduces oxidation risks for extended lifecycle of hydronic equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliability:\u003c\/strong\u003e Heavy-gauge steel construction ensures durability in demanding mechanical rooms.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Ideal for large-scale radiant heating systems, commercial closed-loop hydronic networks, and multi-zone residential plumbing infrastructure requiring high-volume expansion capacity.\u003c\/p\u003e","brand":"Taco","offers":[{"title":"Default Title","offer_id":43136490012766,"sku":"CX300-125","price":4234.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/CX300_125_image_5f6eef8e-3785-475d-8fce-2980b97e8e5c.png?v=1786138677","url":"https:\/\/nationalboilersupply.com\/products\/taco-cx300-125-79-gallon-diaphragm-expansion-tank","provider":"National Boiler Supply","version":"1.0","type":"link"}