ZSR104 | Zone Pump Relay 4 Zone | Caleffi Used on_3 Zone Its 3-inch size makes it

Its 3-inch size makes it ideal for handling large flows and pressures

Reduces installed cost

making it ideal for holding small components in tight spaces

Measuring 8 inches wide by 16 inches high

ZSR104 | Zone Pump Relay 4 Zone | Caleffi Used on_3 Zone Its 3-inch size makes itCaleffi 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