12″ wide interior trench drain forming system. Can be sloped from 7″ to 18″ deep typical (contact us for pricing and availability on deeper depths). Typically used for flows up to 8 cfs (3600 gpm). Frame options are heavy duty black powder painted steel, heavy duty galvanized steel, heavy duty stainless steel, and extreme duty galvanized steel. Comes complete with installation brackets, plywood covers, and end plates. Accepts any of the 14″ wide trench drain grates.