![Classic Style Sr504-exp-4 4 Zone Expandable Switching Relay W/ Priority - Why Pay More? [vHCPmRp5]](https://cdn.shopify.com/s/files/1/0728/3870/9530/files/sr504-exp-4-2_01832fda-4971-4c3c-baa2-b907095d9c62.png?v=1729697892)
Classic Style Sr504-exp-4 4 Zone Expandable Switching Relay W/ Priority - Why Pay More? [vHCPmRp5]
The Taco Switching Relay is the best choice for all your zoning needs, with advanced timer and boiler functions, external diagnostic lights, switchable priority and contracctor friendly PC board layouts. Combined with the time proven reliability of t
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Classic Style Sr504-exp-4 4 Zone Expandable Switching Relay W/ Priority - Why Pay More? [vHCPmRp5]
The Taco Switching Relay is the best choice for all your zoning needs, with advanced timer and boiler functions, external diagnostic lights, switchable priority and contracctor friendly PC board layouts. Combined with the time proven reliability of the 00® family of circulators and thermostats, total system integration is achieved.
What Our Customers Say
Absolutely no complaints!
Really happy with the amazing and great quality.
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Absolutely no complaints!
An exceptional item. My highest compliments.
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Absolutely no complaints!
It’s a very clever, exceptionally and well-made tool.
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