White PVC Reducer Bushing - 1-1/2" Spigot x 3/4" FPT
1-1/2" Spigot x 3/4" Female Pipe Thread
1-1/2" Spigot is the same dimensions as flexible or rigid pipe with 1-1/2" inside dimension and is designed to fit inside 1-1/2" slip fittings. 3/4" FPT will thread onto 3/4" MPT fittings.