Cleveland Controls Model DFS-221-228 Pressure Switch
$58.00
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Description: Model DFS–221 is an airflow proving switch designed for duct heater, oven, and other HVAC or Energy Management applications where an open-mounted, nonadjustable switch is desirable. It is especially suitable for surface-mounting in areas where internal access is limited. It can be used to sense positive, negative, or differential air pressure. The DFS–221 is equipped with a convenient barbed sample line connector that accepts flexible tubing. Air Switch Glossary Here.
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