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. A steel, lockable tap is included. Water tank can be easily removed for use at ground level. Both the mounting system and tap are lockable 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.