Does this unit replace the Bristol H22J series

providing the necessary phase shift to keep compressors and fan motors running cool and stable

Can I use the black spring for LP (Propane) applications

Will this brush fit other heater brands

allowing it to capture the solid contaminants and debris that often lead to premature compressor burnout

Reznor 111848 Vent Cap 30067439-890 Does this unit replace theThe Reznor 111848 Vent Cap is a critical 4 inch vertical terminal component engineered specifically for high efficiency gas fired unit heaters. As an OEM Reznor 4 inch vent cap, this part is designed to maintain the precise static pressure required for optimal combustion in Reznor UDAP, UDX, and UDBP models ranging from 30 to 125 MBH. In the field, using a generic "coolie" cap often leads to backdrafting or blockages; this unit heater vent cap