EVINIS ATV Carburetor PZ19 + 35mm Air Filter for 50cc 70cc 90cc 110cc 125cc ATV Dirt Pit Bike Taotao Honda CRF The item fits for 50cc 70cc 90cc 110cc 125cc ATV Dirt Bike and Go Kart Horizontal Engine Come with 19mm Carburetor with Hand Choke and 35mm Air Filter The air filter interface outside diameter:37mm. Intake inside diameter:19mm