Features • ½-inch (13mm) PFA tubing, .030” (.76mm) thick • All welded construction (shell) • 4½-inch (114mm) diameter polypropylene or PVDF shell • Internally baffled for enhanced heat exchanger performance • “U” factor (depending on flow rate): 25-50 BTU/(hr. x ft² x °F) = 142-284 J/(s x m² x °C) • Shell-side drain connection