Circulation Heater 18 000 W Watts Sheath Material High Temperature Stainless Steel Watt Density 48 sq in Flange Size 3 in Heater Voltage 480V AC 3 Phase Overall Length 58 in Control Range 60 Degrees to 250 Degrees F Enclosure Type NEMA 1 Flange Material Steel Special Information Replacement Heater For Use With Mfr No TFP02674 Includes Tank Mounted Double Pole Thermostat