The Armstrong Astro Express 2 hot water recirculation system is a combination of circulator and low-flow (LF) valve that provides instant hot water in a residential plumbing system. The LF valve shifts cooled hot water into the cold water supply line instead of into the drain. This means far less cooled water is wasted each time the hot water faucet is opened – saving an average of 12,000 gallons of water annually for a typical four-person household. Ideal for retrofit applications.
Astro Express 2 Hot Water Recirculation System
Domestic water distribution in standard two-pipe plumbing installations