The In-line housing  come with a bracket and self-drilling screws to get attached to the wall, a mounting wrench and connectors (or brass inserts). Food grade materials are used to make the housing. The housing come in two dimensions for cartridges of different types and sizes: • Slim Line (cartridge diameter 61-73 mm), height — 5”, 10” and 20”; • Big Blue (cartridge diameter 114-117 mm), height — 10” and 20”. Maximum operating pressure – 7 atm.