Bronze Straight 'Cap & tail' hose connector.  1/2" BSP female swivel nut to 1/2" hosetail.            pt.no. 1-72121

Originally supplied by Aquafax, so therefore may be GUIDI brand (maker not marked).

Enables the joint to be broken without having to 'rotate' the hose.   Suitable for freshwater, seawater, fuel lines, toilet waste lines etc, in Boats, Yachts and similar.