Armstrong's Astro Circulator is intended for circulating water or ethylene glycol solutions in closed hydronic or solar heating systems. It is designed with no mechanical seals or couplers to replace, and no lubrication is required. The Astro series is available in two models for residential, small industrial and commercial installations. Choose from cast iron or bronze models for solar and domestic applications.
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Comments about 25B050S-TA (1/2" Sweat) Re-circulator Pump w/ Timer & Aquastat, 0-13 GPM:
Great recirculating pump to use with instant hot water system for your shower. Timer included with different flow settings.