104106-06 Pressure Switch Kit -0.85"

This is a high altitude pressure switch for the 70000 input btu, and 110000 input btu, BG951 and 110000 input btu BG961 series furnace when installed at an altitude of 4501-7500 feet above sea level. 

If you are using natural gas and installing a BG951 series 70000 input btu, 110000, or a 110000 input btu BG961 input btu furnace at 4501-7500 feet above sea level then simply order this pressure switch.

If you are using propane and installing a BG951 series 70000 input btu, 110000, or a 110000 input btu BG961 input btu furnace at 4501-7500 feet above sea level then please select BG9(5/6)1-LPHAK 3 which includes this pressure switch and LP conversion kit BG11K50.