Pre-Filter Shop Pack / Briggs & Stratton 491435SPack Size:1Briggs & Stratton 491435SNHC 261-3697, Rotary 12960Briggs & Stratton 112200, 12A800-12T899, 92200, 128700-129799 series Package of 40 of our 100-446 pre-filters, Priced per pack, sold per pack