New Pack of 2 Air Pre Filter for Briggs & Stratton 793569 John Deere GY21055 Replace Stens 100-929 2 Quality Aftrmarket Air Filters and 2 Pre-Filters. Air Filters Replace Briggs & Stratton 793569 Pre-Filters Replace Briggs & Stratton 793685 Same Also As John Deere Filter Number GY22055, MUI11511, MUI11513 (Pre) ID: 1-1/2", OD: 3", Height: 5-7/8"