Both sides threaded: 3/4" BSPP Female
Suits an outside diameter (OD) of: 26.9mm
Material: Mild Steel
Finish: Black Self Colour

Standards:
Nominal Bore, Threaded, Screwed, Low Pressure, 300 psi, Mild Steel (Formally referred to as Wrought Iron BS1740), EN 10241 & EN 10255

Alternative terminology:
Union, Mild Steel, Carbon Seel, Wrought Iron, Heavy Weight, Threaded, Screwed, Fittings.