compatibility depends on the McDonnell & Miller 750 series or equivalent control unit you are wiring it to

this kit provides the exact LP gas conversion orifices and high-quality manifold components required to maintain safe manifold pressure and BTU consistency

it prevents equipment damage and potential fire hazards by shutting down the gas valve in the event of an overheating burner or restricted airflow

the LRD21 offers a compact and efficient motor starter solution

Aprilaire 213 Filter Refrigerant compatibility depends on the McDonnellThe Aprilaire 213 Filter is a high performance MERV 13 air filter designed to optimize indoor air quality for residential HVAC systems. Featuring patented Self Seal Technology, this genuine Aprilaire replacement filter minimizes air bypass, ensuring that nearly all circulating air passes through the pleated filter media. Engineered for a 20x25x4 nominal size, it effectively captures 93% of airborne viruses and 99% of common triggers like pollen, mold