PT Coupling Hard Coat Aluminum Reducer Cam and Groove Hose Fitting, B-Reducer, 2" Coupler x 1-1/2" NPT Male Suitable for connecting two hoses of different sizes Type B connection (coupler at one end and NPT male threads at the other) Hard coat aluminum for durability, lighter weight, and resistance to corrosion Suitable for use with sand and salt water applications, hydraulic oil, coolants, gasoline and petroleum products 100% Poured, Casted, and Machined in the U.S.A