Pipe, Fittings, and Flanges | 1in x 1/2in x 3/4in | 3/4in x 1/2in x 1/2in | 3/4in x 1/2in | 3in x 3/4in | 3in | 7/16 in.-20 Unified Fine Thread (UNF) (#4 Society of Automotive Engineering (SAE ), J1926)in