it is the correct technical replacement

PFC Series (Model Number GSKT-PFC)

it includes shaft adapters to ensure a proper fit with the existing knob

ensuring a secure and leak-free fit within the A-4000 Series intake housings

and lodging facilities

Trane WHL0721 Wheel Els PW 17895 it is the correct technicalThe Trane WHL0721 Blower Wheel is a precision engineered OEM replacement part designed for specific air handling and furnace applications. Featuring a 5. 33 inch diameter and a 6. 94 inch width, this direct drive blower wheel is balanced to ensure stable operation and minimal vibration within the centrifugal housing. This specific model, often cross referenced as WHL00721, is configured for clockwise (CW) rotation and utilizes a standard 1 2 inch bore