Specifically engineered as an adding/subtracting repeater

indicating a partial restriction

ideal for high-efficiency burners

making it a reliable choice for refrigeration system maintenance on walk-in coolers

This valve is constructed with cast brass and is suitable for standard open or closed-loop cooling towers and city water

MARS 44507 Transformer R-407A Specifically engineered as an adding/subtractingThe MARS 44507 Transformer is a heavy duty, foot mounted solution engineered specifically for high voltage commercial HVACR control circuits. This 40VA control transformer provides a reliable step down from a 277V primary input to a stable 24V secondary output, ensuring consistent power delivery for intensive diagnostic and operational tasks. Designed with NEMA Class II construction, it maintains low heat rise during continuous duty, protecting