When a regular filter just won't do, turn to an aFe ProHDuty Filter. aFe ProHDuty Filter are heavy duty variants of aFe filters you trust; Pro 5R, Pro DryS and Pro-Guard 7. PartNumber : afe70-10051 Description : ProHDuty Filter Width (in.) : NA Filter Style : Pre-Oiled Shape : OEM Filter Material : Mesh Synthetic Media Height (in.) : OEM Overall Length (in.) : NA Diameter Outside (in.) : OEM Cap Outside Diameter : N/A Diameter Inside (in.) : OEM Air Filters::Air Filters - Direct Fit