Get current pricing for Doyle & Roth, Doyle & Roth 310 Sq. Used Doyle & Roth 310 Square Foot Hastelloy Heat Exchanger. Hastelly C276 Tubes, Tube Sheets, And Bonnets. 9316) 3/4 Diameter X 5', Long Tubes Ra . Product Category: Process Equipment, Sub Category: Process Heat Exchangers: