DeWitts Pro-series aluminum radiators feature two rows of 1.0" wide cooling tubes which provides a 25% increase in cooling performance. Our Direct Fit™ aluminum radiators feature factory type press formed end tanks, serpentine fins, and the factory type upper and lower channels. Each radiator core is assembled and brazed in our state-of-the-art aluminum brazing furnace. DeWitts radiators are also epoxy free and come with a limited lifetime warranty. Direct Fit™ is our official trademark and it means your radiator will fit, without modifications. Aluminum 2 Row 1" Tube