Amazon.com : Stens New Air Filter Combo 100-012 Compatible with Honda Most GX340 11 HP and GX390 13 HP Engines, GX240 8 HP and GX270 9 HP Engines When Equipped with Cyclone
Amazon.com : HOODELL Professional GX390 Air Filter, Compatible with Honda GX340 GX 390 11HP 13HP Engine 17210-ZE3-505 17210-ZE3-010 Air Filter : Patio, Lawn & Garden