Briggs & Stratton 2 Pack Air Filters Plus Pre-Filters Air Filter 494511, 494511S, Pre-Filter 492889, 492889S 2 Quality Aftermarket Air Filters Plus Pre-Filters Replaces Briggs & Stratton Air Filters Part Number 494511, 494511S Replaces Briggs & Stratton Pre-Filters 492889, 492889S Width: 3-1/2", Length: 7", Height: 1-1/8"