ATI AF056I-001 Air Filter 3.75" inlet x 7.0" long

ATI AF056I-001 Air Filter 3.75" inlet x 7.0" long

This is the standard filter that is used when the filter is bolted directly to the blowers that have an 3.75" inlet. 

 Air Filter Bottom Measurement: 5.375 in. diameter

Fits:

P600B, P-1SC, P-1SC-1, P-1SC-2, P-1X, D-1, D-1SC, D-1X, F-1D, F-1, F-1A & F-1A-91