The Lennox 21G88 Disconnect Switch is a heavy-duty

This valve is designed for use with air and fuel gases

the 3/4" units require a different kit (RK 009M3)

It comes factory-configured for natural gas but includes an LP conversion kit for propane applications

Resideo FC100A1052 Filter Els PW 29614 The Lennox 21G88 Disconnect SwitchThe Resideo FC100A1052 (Honeywell Home) is a high efficiency MERV 11 replacement media filter engineered for compatibility with 20" x 12. 5" air cleaner housings. Designed to maintain system integrity, this pleated filter features a low static pressure drop of 0. 23 in. w. c. at 500 FPM, ensuring optimal airflow while protecting heat exchangers and cooling coils from dust accumulation. As a veteran grade HVAC media air filter, it utilizes a moisture