While the FAN4078 is the official superseding part

This model utilizes a non-metallic disc-to-metal seating design

snap-on high-impact ABS plastic cover

it offers three distinct taps to calibrate CFM delivery based on static pressure and system load requirements

This motor is critical for maintaining the intended speed and torque specifications of your furnace or air conditioner's blower assembly

Beckett Igniter 7622TW04U Well R-134A While the FAN4078 is theThe Beckett 7622TW04U is a professional grade 3 4" NPT brass immersion well designed for high performance temperature sensing in hydronic heating systems. Engineered for durability, this thermowell features a robust brass and copper construction that provides superior structural integrity compared to older polymer models. With an insulation depth of 4 3 4 inches and an insertion depth of 1 5 8 inches, this component ensures precise thermal transfer