operating within a pressure range of 7

maintaining peak combustion efficiency and preventing unnecessary system cycling

Is the Watts 0121504 interchangeable with the LF174A-1-125

provided the "leg" of the Y points downward to allow for proper debris collection and drainage

Lennox 89J10 Blower Wheel R-134A operating within a pressure rangeWhen high static pressure or years of debris accumulation causes a failure in your air handler, the Lennox 89J10 Blower Wheel is the professional grade solution to restore factory spec airflow. This 10" x 8 1 2" direct drive blower wheel features a 1 2" bore, engineered for a precision fit on standard motor shafts to eliminate vibration and avoid premature bearing wear. With a 48 blade forward curve centrifugal fan design and a clockwise (CW) rotation