Water filter housing spanners available to fit a range of different slimline, standard and jumbo (AKA Big Blue) filter housings.
Housing spanners are an essential tool that aid in the opening of filter housings when replacing filters.
Full lists of compatible part numbers can be on each spanner product page or if you need any advice on which spanner will fit which housing, please don't hesitate to contact us.
Although not essential, this handy tool aids in easy release of John Guest quick connect fittings and can make the job much easier when attempting the task multiple times.
Comes with tools for 3/16", 1/4", 5/16", 8mm, 3/8" and 1/2" fittings.