Hooker 21518HKR Single 3" Center Inlet, Dual 2-1/2" Outlet Single 3" Center Inlet Single 2-1/2" Dual Outlet 4-3/4"H x 11"W x 19"L 16 Gauge Aluminzed Steel Case Reinforced Inlets and Outlets Stainless Steel Perforated Plate eliminates Internal Rust