This is a bunch of brackets I made for a RODI water filtration system I built for cleaning my solar panels and cars. The brackets where needed to neatly cram 4 full size 10" filter cartridge holders, 3 RO membranes,a booster pump, 3 res./bypass valves and a bunch of tubing all into a Rubbermaid All Access Organizer storage crate. Although it was tight, it works great and everything comes out of the crate easily for filter changes and servicing. This crate has a front panel that opens as well as top access. The membrane rings (2 per housing) slide snugly over the housings and allow multiple membrane housings to be stacked and zip tied neatly together. The booster pump mounting bracket sits above and in the center between 4 10" filter housings laid out in a rectangle, allowing the 3 RO housings to lay horizontally below the booster pump between the filters. The restricter / bypass valves zip tie to the bracket and the the bracket is zip tied to the wall of the crate.