ZSR104 | Zone Pump Relay 4 Zone | Caleffi Type_4 Prong Aluminum Hand Knob **Key Features:** * 1 5/8"

**Key Features:** * 1 5/8" diameter for handling cylindrical components * Compact design for use in confined spaces * Durable construction for industrial environments * Advanced cooling system for efficient temperature regulation * High airflow capacity for rapid moisture removal Whether you're looking to dehydrate pipes

The LightBlue color indicator provides easy visual confirmation of the switch's status

2-135@ POTSThe Honeywell L91D1031 is a highly reliable and efficient 5/150# Proportional Temperature Controller designed for use in commercial and industrial applications

This vent assembly is engineered to specifically fit Reznor equipment

It meets industry standards and is built to withstand demanding conditions

ZSR104 | Zone Pump Relay 4 Zone | Caleffi Type_4 Prong Aluminum Hand Knob **Key Features:** * 1 5/8"Caleffi 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