Leg Kit, Reservoir, Aluminum, Length 5.91 In, Width 2.52 In, Height 2.52 In, Thickness 0.20 In, Hole Dia M10 In, For Use With 3JWR9, 3JWT1, 3JWU3, 3JWU4, Includes Legs & Fasteners Leg KitsCan be used with either reservoirs or tanks to improve air circulation under the tank.Aluminum Hydraulic Reservoirs and TanksAluminum construction provides twice the heat dissipation of steel reservoirs.