C
Caleffi
Photo: Plumbing Deals
ZSR104
Caleffi ZSR104 Z-One 4 zone pump Control
by Caleffi
Home & GardenHousehold Appliance AccessoriesFurnace & Boiler Accessories
| Manufacturer part number | ZSR104 |
|---|---|
| Plumbing Deals SKU | CALEZSR104 |
| UPC / GTIN | 8016615438123 |
| Availability | In stock at Plumbing Deals, as of 18 Oct 2026 |
$254.32
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 Caleffi ZSR104 is a 4-zone expandable switching relay with priority, designed for multiple zone hydronic heating systems. It interfaces with low voltage thermostats and controls up to 6 zone pumps and a primary pump, featuring LED indicators for system status and troubleshooting.