this specific retrofit mounting solution is designated for systems with 2 or 3 fans per circuit

Universal Compatibility: Directly replaces the KMC M573-3108

Does this valve require a minimum operating pressure

converting thermostat signals into a format compatible with advanced rooftop units

As a veteran-grade replacement for the L-307-1

Lennox 98L78 Tubing 320074-702 this specific retrofit mounting solutionThe Lennox 98L78 Tubing is a critical OEM replacement kit used for establishing airtight connections between furnace pressure switches and intake exhaust components. This high temperature pressure switch square tubing is engineered to withstand the rigorous thermal cycles found in modern condensing gas furnaces. As a veteran grade HVAC replacement part, this kit features an approximate 3 16 inch ID (inner diameter), ensuring accurate pneumatic signals