9456-03 – Air Filter Foam – this must be oiled before use. There should be instructions shoved inside.
Another favorite tip/trick from our users is to use some pantyhose and put it around the entire air filter assembly as an extra sort of pre-filter. Not fishnets, but something with a finer knit to it.
Find it in your Manual:
Hydrostatic
Illustration: 22/5
Page: 2-25
Mechanical
Illustration: 22/4
Page: 2-25
Electrical