Side 1 threaded: 4" BSPP Female
Suits 1 suits an outside diameter (OD) of: 114.3mm
Side 2 threaded: 2" BSPP Female
Side 2 suits an outside diameter (OD) of: 60.3mm
Material: Malleable Iron
Finish: Galvanised
Standards:
Nominal Bore, Threaded, Screwed, Low Pressure, 150 psi, Malleable Iron, EN 10242 & EN 10226-1
Alternative terminology:
Malleable, Iron, Reducing Bush, Threaded, Screwed, Figure 241, Fittings.