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Recirculation Systems

Recirculation pumps are Intended for circulating water or ethylene glycol solutions in closed hydroponic or solar heating systems. 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. Armstrong Pumps are equivalent replacements for Bell & Gossett, Grundfos, and Taco products. See our How To / Help section to find a Cross Reference Chart.