Furnace Air Pressure Switch Fits MPL 106123 9371DO-HS-0011 1.20"

A good switch and it works for my York hot air furnace. Most importantly , at $26 a pop, it is very affordable. I give it a five stars because when I Google search “The real operation of air pressure switch in a gas furnace” I not only learned how it works but also how simple to replace a bad air pressure switch. In 2021 when my Hot Air furnace turned on and the motor ran for 60 seconds then stopped, I saw an “Air Pressure switch stuck open “ diagnostic error, I called local service company for repair. They charged me $109 for the technician to go out and $240 for parts and labor, a total of nearly $350 for replacing a “stuck open” air pressure switch. In 2022, same error appeared and I called same local service again and asked them to check. A technician came , she said need a new inducing motor. I ended up paying final bill $780. This time, I decided to do some research on You Tube and ordered the Air Pressure Switch online. I’m glad it works out for me.