Constructed from heavy-duty corrosion-resistant stainless steel for long-term sanitation and durability

typical in residential heating upgrades

or the system throwing an "open pressure switch" error code

Most technicians replace the D6723320S due to vibration caused by dirt accumulation

for outdoor service

Armstrong Furnace ALPKT574-3 Conversion Kit Els PW 17895 Constructed from heavy-duty corrosion-resistant stainlessThe Armstrong Furnace ALPKT574 3 Conversion Kit is a critical component for field converting high efficiency gas furnaces from natural gas to liquid propane (LP) operation. Engineered for precise fuel to air ratios, this LP gas conversion kit ensures stable combustion and prevents soot accumulation or heat exchanger fouling common with improper venting or fuel delivery. Designed specifically for Armstrong Air and AirEase equipment, the kit includes