Pro Water Tank holds a capacity of 42L (11.1 gal). Made of food-grade polyethylene and is BPA-free. The mounting bracket is easily removable and does not interfere with the cap operation. Includes the brackets necessary to mount the tank to your Roof Rack as well as stabilizing the sides. A steel, lockable tap is included which can be locked with the Front Runner RRAC134 (sold separately). The tank has 1/2'' (BSP thread) polyethylene fitting for the supplied tap or any other 1/2'' fitting.