The 4051 aluminum tank can be used with any of the Wallas diesel products, with two separate drop tubes, allowing you to run up to four Wallas devices of the single tank.  The 4051 tank is fitted with a 1.5″ top fill nipple to connect to a hose and deck fill (not included). Hoses, filters and fittings not included with tank, but should be specified and purchased with your Wallas product. Dimensions shared with the #4050 tank.