General Filters 7021 Air Pressure Proving Switch, 0.5 In. Wc. Setpoint, 2-3/5" Overall Length, 1-3/5" Overall Height, 2-11/20" Overall Width
General Filters 7021 Air Pressure Proving Switch, 0.5 In. Wc. Setpoint, 2-3/5" Overall Length, 1-3/5" Overall Height, 2-11/20" Overall Width
General Filters 7021 Air Pressure Proving Switch, 0.5 In. Wc. Setpoint, 2-3/5" Overall Length, 1-3/5" Overall Height, 2-11/20" Overall Width

General Filters 7021 Air Pressure Proving Switch, 0.5 In. Wc. Setpoint, 2-3/5" Overall Length, 1-3/5" Overall Height, 2-11/20" Overall Width

General Filters 7021 Air Pressure Proving Switch, 0.5 In. Wc. Setpoint, 2-3/5" Overall Length, 1-3/5" Overall Height, 2-11/20" Overall Width

Manufacturer: General Filters
Brand: General Filters
Part #: 383978
MPN: 7021
Customer Part #:
Min. Order Qty: 1
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Overall Height      :      1-3/5 "
Overall Length      :      2-3/5 "
Overall Width      :      2-11/20 "
Setpoint      :      0.5 in. wc.
Suitable For Use With      :      Steam Kits, Humidifiers

General Filters Air Pressure Proving Switch, 0.5 In. Wc. Setpoint, 2-3/5" Overall Length, 1-3/5" Overall Height, 2-11/20" Overall Width

Prevents humidifier operation when there is no airflow in the duct.Helps prevent moisture buildup within the duct system.Features an activation pressure setpoint of 0.5 inches water column.Senses furnace operation to control humidifier power.Compatible With: Steam kits and humidifiers.