As the name suggests -these are useful in the permanent repairing or joining of 2 hosepipes or pieces of hosepipe of the same diameter.
They boast the super secure bond of a double hose-nut, ensuring that the hose will not pull apart at that join again.
 
Available for 13mm (1/2″) and 19mm (3/4″) hosepipe. Hint: on old hose, dip the hose ends in a cup of hot water to soften them.