SR503EXP TACO 3 ZONE HOT WATER HEATING SYSTEM CIRCULATOR PUMP RELAY with PRIORITY ZONE

• External Indicator Lights, Universal replaceability, Snap-in PC Board
• Simplified Wiring, Fully Enclosed Snap-Out Relays, 100%Factory Tested
• Contractor Friendly PC Board Layout, Universal Thermostat Compatibility, UL and CSA Approved
• Extended 3 Year Warranty, Made in the USA
• External Indicator Lights

Product DescriptionTaco Switching Relays combine clearly-labeled PC board layouts with advanced features that allow you to completely customize your system. And whether youre using basic priority switching, Taco Plug-In PowerPort Cards or add-on power controls, tailoring the system has never been easier. External indicator lights give you instant diagnostic feedback, making service calls or new installation start-ups a snap. All switching relays are UL listed, use standard "ice cube" . . . More >>

SR503EXP TACO 3 ZONE HOT WATER HEATING SYSTEM CIRCULATOR PUMP RELAY with PRIORITY ZONE