SR501-4 1 Zone Switching Relay 319143-443 The BUTYL diaphragm separates the

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

The control features a bigger enclosure (double in size) than its predecessor (ZON-0550) for increased space for equipment wiring

The intuitive touchscreen diagnostic display provides clear

• 20 Plate

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 The BUTYL diaphragm separates theTaco 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