ZSR104 | Zone Pump Relay 4 Zone | Caleffi Product Type_HUBxSupply Manifold and Return Adapter The Apollo 163TLF-PR is an

The Apollo 163TLF-PR is an excellent choice for industrial and commercial water systems

The 50/60 Hertz frequency rating ensures compatibility with most standard electrical systems

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opening to allow flow when energized

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ZSR104 | Zone Pump Relay 4 Zone | Caleffi Product Type_HUBxSupply Manifold and Return Adapter The Apollo 163TLF-PR is anCaleffi Zone Pump Relay (ZSR104)The Caleffi ZSR104 Zone Pump Relay is designed to control up to four (4) zone pumps. Each zone can be independently controlled, allowing for maximum flexibility and energy efficiency. The ZSR104 is ideal for use in hydronic heating and cooling systems. **Key Features:** * Controls up to four (4) zone pumps * Independent zone control for flexibility and energy efficiency * Suitable for hydronic heating and cooling