Oregon 30-205 Foam Air Filter Tecumseh 31700 3-1/2-inch Diameter Height of 2-3/16-inches Replaces Tecumseh part number 31700 Measures 3-1/2-inch in diameter by 2-3/16-inches in Height Fits 3, 3-1/2, 4, and 5 HP vertical and horizontal engines, tiller application Fits LAV, H, HS, VH and HM series