The TACO 1 zone switching relay's layout helps make short work of most jobs. Its snap-in PC board easily replaces any single zone switching relay without replacing or rewiring the entire box. Uses a standard "ice cube" replaceable relay that is compatible with conventional and programmable thermosta...

The Taco Switching Relay is the best choice for all your zoning needs, with advanced Power Port 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 i...