Acorn Demounting Tool

The small moulded collar that releases an Acorn push-fit joint. It clips over the fitting and holds the grab-ring open so the pipe pulls straight out. Without one, a push-fit fitting cannot be undone and the pipe has to be cut.

• Check before ordering: one tool per pipe size — a 15 mm tool will not release a 22 mm fitting. Acorn also sell this as a "helping key", which is the same thing.