Glixal ATJOG-001 19mm Carburetor with Electric Choke for Jog 50cc 72cc 90cc 2 stroke 1PE40QMB Engine Scooter Moped PZ19J Inner Diameter (intake side):19mm Outer Diameter (intake side):23mm Inner Diameter (air filter side): 31mm Outer Diameter(air filter side):37mm Material:Zinc alloy