T
TACO
Photo: Plumbing Deals
SR503-4
Taco SR503-4 3 Zone Switching Relay
by TACO
Home & GardenHousehold Appliance AccessoriesFurnace & Boiler Accessories
| Manufacturer part number | SR503-4 |
|---|---|
| Plumbing Deals SKU | TACSR5034 |
| UPC / GTIN | 687752857566 |
| Availability | In stock at Plumbing Deals, as of 18 Oct 2026 |
$216.46
at Plumbing Deals · as of 18 Oct 2026
See current price at Plumbing Deals
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Description
From Plumbing Deals' product listing.
The Taco SR503-4 3-Zone Switching Relay simplifies hydronic heating control by managing up to three zones with individual thermostats. With universal compatibility and plug-and-play wiring, it's perfect for residential heating systems requiring efficient zone management and circulator control.