Grundfos Comfort System Recirculator Pump

The Grundfos Comfort System is a pump and valve combination that delivers you hot water in an instant to any faucet or bath in your home. The Comfort System uses a pump at your water heater along with the patented under sink valve beneath the sink furthest away from the pump. The Grundfos, 595916, recirculation pumps comfort systems patented combination creates a pressure differential that allows the cold and cool water in the hot water supply line to “by-pass" (at low volume) into the cold supply line through a thermostatically controlled valve that is mounted under the sink furthest from the water heater. Applications:  This combination works together to keep the water in your hot water line at temperature to provide “no-wait" hot water throughout your home. The timer on the pump makes it more efficient during downtime, like nights or mid-day. It’s quiet, maintenance-free, and keeps your water at a comfortable temperature.  Features: Retrofits to existing plumbing No retur