Taco SR503 Three Zone Switching Relay W/ Priority For Circulators motor suitable for a variety of

suitable for a variety of demanding applications

Works without rinsing

It's maintenance-free and easy to install

and pet dander before they reach the main filter

Taco SR503 Three Zone Switching Relay W/ Priority For Circulators motor suitable for a variety ofProduct Description Taco's SR503 is a three zone switching relay designed for priority control of circulators. It enhances efficiency in hydronic heating systems, making it suitable for various industrial and commercial applications. Three zones with priority control for better heat management. Compact design fits in tight spaces. Adjustable delay settings optimize system performance. Product Highlights This reliable switching relay assures optimal