Pressure Switches

Tjernlund PS1503 Positive Air Flow Pressure Switch

The Tjernlund Duct Airstat senses positive pressure in a forced air heating and/or cooling system. Single pole, single throw, snap-acting switch. Typically used to activate boosting fans.

From $56.00

Greystone GFS Pressure Switches

General purpose airflow proving switch designed for HVAC applications. Used to sense positive, negative, or differential air pressure.

From $37.40

Greystone AFS Pressure Switches

General purpose airflow proving switch designed for HVAC and Energy Management applications. It may be used to sense positive, negative, or differential air pressure.

From $62.90
 

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