Caleffi ZSR103 Z-One 3 zone pump Control
by Caleffi
HardwarePlumbingPlumbing Fixture Hardware & Parts
| Manufacturer part number | ZSR103 |
|---|---|
| Plumbing Deals SKU | CALEZSR103 |
| UPC / GTIN | 8016615438116 |
| Availability | In stock at Plumbing Deals, as of 18 Oct 2026 |
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Description
From Plumbing Deals' product listing.
Supporting reliable hydronic zoning, the ZSR103 integrates three pump zones into one intelligent control module that streamlines wiring and system management. Priority zoning, LED diagnostics, and built-in transformer capacity deliver consistent performance in radiant, baseboard, or multi-zone hot-water systems. Its compact enclosure mounts cleanly in mechanical spaces and simplifies troubleshooting for installers and technicians.