Heat Exchanger Brazed Plate Max BtuH (Water to Water Application) 5 900 000 BtuH Max BtuH (Oil to Water Application) 636 250 BtuH Max BtuH (R22 to Water Application) - 435 PSIG Design Pressure Temp (F) -40 To 300 100 Plates Surface Area per Plate (Sq.-Ft.) 1.062 sq ft Volume (Gal./Chnl.) 0.0704 Construction Material ASTM 316L Stainless Steel Copper Connection 2 in MNPT Capacity (GPM) 225 gpm 24.3 in 11.91 in 7.48 in - 112.4 lb ASME CRN UL Includes -