Adjustable Pressure Switch Description Universal small footprint air pressure sensing switch that replaces hundreds of small footprint air switches Set point range: 0.10" to 10.0" W.C. Includes springs and orifice restrictors UL, CUL, CSA, CE Approved $86.29 $52.64 Add to Cart
Aprilaire Model 50 Current Sensing Relay Description The Aprilaire 50 current sensing relay is used to turn any humidifier on when the indoor blower of the air handler is energized. The relay makes installing any humidifier easier than ever before. Designed to be installed in series with... $88.18 $53.79 Add to Cart
