Robertshaw 2374-522 Adjustable Air Pressure Sensing Switch, 0.15" - 2.0" W.C. Static Pressure Your customers will love this
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Robertshaw 2374 522 Adjustable Air Pressure Sensing Switch, 0.15" 2.0" W.C. Static Pressure Your customers will love this Your customers will love this control's demand defrost algorithm that only defrosts when necessary Bi Metal Blade for Drywall