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Flexcon Industries H2 Pro - 2.1 Gallon Hydronic Heating Expansion Tank The HTX Series Hydronic expansion tanks are the latest in a long line of quality products brought to you by Flexcon Industries. Constructed of deep drawn welded steel domes, HTX tanks feature butyl diaphragms engineered for longer life. Butyl rubber is the material of choice for American heating systems as it offers low permeability rates at higher temperatures. Our oversized diaphragm maximizes tank drawdown, and minimizes wear. This design virtually eliminates diaphragm stretch, which enhances longevity. The in-line HTX Series are available from 2 to 15 gallons and utilize a welded system connection with built-in hex nut for easy installation.The brass shrader valve has an o-ring seal to ensure air side integrity. An appliance quality finish means many years of service in damp basements and crawl spaces. Quick Spec:
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