49L91 | Lennox 49L9101, Pressure Switch, Actuates at 0.51" W.C.; Resets at 0.61" W.C. | Lennox

.51"wc SPST Pressure Switch (49L91) by Lennox The Lennox 49L91 is a rugged and reliable pressure switch designed for use in various HVAC applications. This switch features a single-pole, single-throw (SPST) design with a pressure range of 0.51 inches of water column (wc). Its compact size and easy-to-install design make it suitable for use in tight spaces or equipment panels. This pressure switch may be used as a replacement option for Lennox HVAC systems or as a general-purpose switch in other industrial or commercial applications where precise pressure control is required. With its durable construction and reliable performance, the Lennox 49L91 pressure switch delivers lasting value and dependability for your industrial or commercial HVAC systems. Shop our HVAC supply store for the best prices and fast shipping!