Rinnai RBOX04L Galvanised Lockable Recess Box To Suit 16L, 20L & 26L ModelsSKU: RBOX04L When installing a Rinnai Infinity, consider including one of our innovative wall recess boxes. Recess boxes allow you to mount your Infinity hot water system into the wall cavity virtually hiding it from view and maintaining a sleek appearance to your exterior walls. Galvanized construction Suit 160mm deep cavities Single or double brick application Security bracket supplied (padlock supplied with box) Suits Rinnai 16 26L 'B' & 'Infinity'