Is a wholesaler of surplus industrial equipment. All products represented by mainlnad valve & fitting, inc. That is noted sa surplus are surplus and are not represented by any manufacture. All information ilsted herein is, to the best of our knowledge, believed to be correct.Hose fitting aluminum 3npt part b female coupler354wh air tool accessories all material is surplus, and we have no way fo testing anything we sell. Please review the pictures carefully.