Air Filter / Briggs & Stratton 491021Pack Size:1Briggs & Stratton 491021, Lesco 050654Edgewater 010752, ESF 101-082, Foley/Belsaw 5979331, Foley/PLP 101-082, Green Line 38162, Green Meadow AF134, J. Thomas AF-491, J. Thomas 6604, Laser L3273, Laser 93095, Landscaper Express 5101021, Mow More BS021, Napa 2437, NHC 261-1200, Oregon 30-134, Prime Line 7-02700, Rotary 6604, Sunbelt SB-6604, Sunbelt B1SB6604, Wix 42437Briggs & Stratton 260700 and 261700Length: 6 3/4 ", Height: 3 ", Width: 3 "