SR501-4 1 Zone Switching Relay 319143-443 or performing routine maintenance

or performing routine maintenance

The intuitive touchscreen diagnostic display provides clear

The BUTYL diaphragm separates the air from the water and prevents waterlogging while saving space and energy

Push Connection

RB-5 gun does not need a power supply and can be used anywhere at any time

SR501-4 1 Zone Switching Relay 319143-443 or performing routine maintenanceTaco SR501 Single zone switching relay is a standard equipment for every installer. It can easily replace any brand made by any manufacturer, and will even fit into the existing metal enclosure without rewiring incoming connections. The SR501 single zone switching relay is UL and CSA listed, uses a standard ice cube replaceable relay and is compatible with conventional and programmable thermostats. External indicator lights provide instant diagnostic