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Ships within 48 hours · Estimated delivery Aug 26 - Aug 31
Item Dimensions: 52 x 48 x 43 inches
Manufacturer: SnapOn
Control Type: Coiled Bulb
Valve Size: 6 inches [150]
Construction: Durable materials suited for continuous use
Caleffi ZSR104 4 Zone Expandable Switching Relay with Priority voomi_id_3501 Item Dimensions: 52 x 48Product Description The Caleffi ZSR104 is an expandable switching relay designed to control up to four hydronic heating zones with additional priority zoning capabilities. This module is ideal for simplified zoning applications where multiple zones require individual control. Integrates with low voltage thermostats or controllers. Features high capacity transformer options and multiple zone control. Fully equipped with LED indicators for system
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