Brass Hose Tail 1/2" BSP Female Thread to 1/2" Hose Tail 

• Solid Brass Construction 
• Flat Sealing surface 
• 1/2" BSP Female Thread ( This is unusual and will not fit a 1/2" Bibtap )  

More information on thread sizes 

This female thread will fit a male bsp thread.  If you measure the outside diameter of your male thread then it will measure 21 mm 

For more information explaining how to measure a British Standard Pipe Thread Click HERE