Amflo, standard, thumb lever type blow Gun features a convenient, built-in hang hook, comfortable thumb lever valve control, and one-piece nozzle. Plated steel handle is attached to Gun body with heavy duty rivets for a firm, positive action. All metal construction - built to withstand the toughest home garage or shop use. 1/4-18 female NPT inlet and 1/8-27 female NPT outlet. Amflo is part of the Plews & Edelman group. Plews manufacturing and sales Corporation was originally founded by R.G. Plews in 1927. At that time, the railroad industry was the primary focus for the company's extensive line of oil cans. As the Transportation industry went from trains to passenger cars and trucks, Plews shifted their focus to developing the tools necessary to service this new mode of Transportation. Fast forward 90 years and Plews has become part of Plews & Edelman. Today, Plews & Edelman is a leading designer, manufacturer and distributor of a broad range of automotive parts and tools sold to the vast majority of mass merchant, retail auto parts stores and wholesale automotive parts and industrial distribution outlets, worldwide.