Side 1 threaded: 2.1/2" BSPT Male
Side 1 suits an outside diameter (OD) of: 76.2mm
Side 2 threaded: 1.1/4" BSPT Female
Side 2 suits suits an outside diameter (OD) of: 42.4mm
Material: Forged Steel A105N
Finish: Black Self Colour
Standards:
BS3799, ANSI B16.11 MSS SP-83, MSS SP-95, MSS SP-97
Alternative terminology:
Forged Steel, Carbon Steel, , Reducing Bush, Threaded, Screwed, , Fittings.