4 Zone Expandable Switching Relay w/ Priority (ZSR104)$259.91Add to cart
The ZSR series is a zone pump and boiler operating control for multiple zone hydronic heating systems. The ZSR series interfaces with low voltage thermostats, or any other low voltage controllers having a switching action.
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Craft Supply is a diverse wholesale distributor of hardware and fitting systems, plumbing supplies, heating supplies, valves and fittings, waterworks and drainage, faucets and fixtures, tools and other equipment as well as many other specialty products within the industry.