Made of corrosion resistant steel. Unit includes non-slip top,securing bolt,flow diffusing baffle,There are 8 models to choose from 4 gallon to 50 Gallon. Grease Trap check chart for info LJ-100$750.00 Grease Trap check chart for info Lj-40$325.00 Grease Trap check chart for info LJ-50$550.00 Grease Trap check chart for info Lj-30$265.00 Grease Trap check chart for info LJ-8$120.00 Grease Trap check chart for info LJ-20$190.00 Grease Trap check chart for info LJ_14$145.00 Grease Trap check chart for info LJ_70$650.00 If you can't find it online, feel free to email us to bowerykitchen@yahoo.com for a prompt reply