Georg Fischer end-socket coupling in 3/8" thread with an 18 mm face length, machined from electro-galvanised steel. It is part of GF's black and galvanised threaded fitting range for water, gas, and industrial pipework installations. The socket profile allows a female-to-female pipe connection. Supplied under manufacturer part number 770300203, EAN 7611205430641, HS code 7307.19, country of origin Austria.