Summary

This template is for a water filter housing spanner that fits the large size water filter housing, usually used as part of a 'whole of house' water filtration system.
Most water filter housings of this type come with a plastic (ABS) version (pictured) when the kit is purchased, however if the installer or someone else stole it instead of leaving it with the filter, then this is an alternative replacement.
I'll get it to you soon Mum; to replace the one that was nicked.