Premium Air Filter: Soft gasket for a better seal. Larger filter area provides 4% higher air intake than original, with less rubber flash for improved airflow and potentially increased gas mileage. Model Air Filter: Compatible with & 491588S, 491588, 4915885, 399959 push lawn mowers, BS-4101, 5043, 5043A, 5043D, 5043H, 5043K. Fits 3.5 to 6.5 HP Quantum small engines, 625, 675, 725, 625-675 E/EX series elements. Wide Use Parts: Designed for Toro 20332, 20334, 20330, Craftsman, , Troy-Bilt walk-behind lawn mowers and tractors. Replaces OEM air cleaner part numbers. Note: This item is not compatible with Kohler engines; please verify compatibility before purchase. Durable Air Filter: Pack of 5 air filters built to withstand heavy dust and grass debris. Exact fit design ensures reliable performance. Each filter is individually sealed for easy storage and long-term protection. Enjoy consistent performance throughout the mowing season. What You Get: 5 high-quality air filters and responsive customer service. A reliable choice for engine maintenance. Filter Size: 5-1/4" Length, 4-1/2" Width, 13/16" Height