Adapter 1-1/4 MNPT x 1-1/4 FBSPP

Adapter, Connection Size 1: 1-1/4-in, Connection Type 1: Male NPT, Connection Size 2: 1-1/4-in, Connection Type 2: Female BSPP, Material Construction: Steel, Thread Size 1: 1-1/4-11-1/2, Thread Size 2: 1-1/4-11