K&N RB-0900: RB-0900 Round Straight Air Filter Flange Dia. (F): 3 in. (76 mm)
3'' (76 mm) Flange Dia. (F)
Round Straight Air Filter Flange Dia. (F): 3'' (76 mm) Outside Dia. (D): 4.5'' (114 mm) Length (L): 4'' (102 mm) Top Style: Rubber Flange Length (FL): 1'' (25 mm) Flange Angle (FA): 5º Flange Offset: 0''