this cartridge leverages a Precision Pleat design to capture over 95% of airborne particles down to 0

Technicians should look for visible grooving

this specific part number is calibrated for Natural Gas pilot systems

as it may differ from the original unit

suitable for both low-temperature refrigeration and medium-temperature air conditioning

Lennox 72L70 Fan Blade 321042-401 this cartridge leverages a PrecisionWhen you are onsite and dealing with a failed condenser fan, the Lennox 72L70 Fan Blade is the direct spec replacement required to restore factory level thermal rejection. This 18 inch diameter propeller is engineered for high static pressure applications within Lennox, Armstrong, and Ducane outdoor units. Featuring a 3 blade configuration with a 22 degree pitch, it is balanced to ensure smooth operation and reduced bearing wear on the motor. The 1 2