Lennox Y6607 Replacement Cartridge 321142-301 the 50086 series conversion requires

the 50086 series conversion requires a specific pilot orifice adjustment or replacement included in the kit to ensure consistent flame sensing and ignition

meaning the valve stem will maintain its last position upon loss of power rather than returning to a default open or closed state

and relays in high-efficiency rooftop units and chillers

compatible with a wide range of commercial burner circuits

requirements typical for propane applications

Lennox Y6607 Replacement Cartridge 321142-301 the 50086 series conversion requiresThe Lennox Y6607 Replacement Cartridge is the critical filtration component for the PureAir PC03 20 and PC03 16 air purification systems. As a veteran grade MERV 16 furnace filter, this cartridge leverages a Precision Pleat design to capture over 95% of airborne particles down to 0. 01 microns, effectively neutralizing microorganisms, volatile organic compounds (VOCs), and odors. This is an authentic OEM Lennox 613860 01 part, engineered with a robust