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SR503-4 TACO 3 ZONE CIRCULATOR RELAY WITH PRIORITY ** NOT EXPANDABLE OLD# SR503-2

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Free shipping on orders over $29.99

$178.60

$ 81 .99 $81.99

In Stock
  • External indicator lights
  • Switchable priority
  • Simplified wiring
  • Fully enclosed snap-out relays
  • Compact design


The Taco Switching Relay is the best choice for all your zoning needs, with advanced PowerPort Cards, external diagnostic lights, Switchable priority and contractor friendly PC board layouts. Combined with the time proven reliability of the 00 family of circulators and thermostats, total system integration is achieved.


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