ITEM NAME:2 to1 Steel Exhaust Merge Collector Dual 1.5" ID Inlet Single 1.75" OD Outlet Description: Stainless Steel 2-1 Exhaust Merge Collector Dual 1.5" ID Inlet Single 1.75" OD Outlet 1.5" to 1.75" stainless steel exhaust merge collector, featuring dual 1.5" ID and single 1.75" OD. All collectors are welded, made of T304 stainless steel and are designed to assist in your custom fabrication project. Quantity: 1pc Material: T304 stainless steel ï ¼Ë†unpolished ï ¼â€° Single: 1.75" OD Dual: 1.5" ID slipover End to end length: 8" Package Includes: 1x Exhaust Merge Collector SKU: DMO0000875452035155.Single: 1.75" OD. Dual: 1.5" ID slipover. Material: T304 stainless steel ï ¼Ë†unpolished ï ¼â€°. End to end length: 8".