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    Watlow® tubular heaters are available in single-ended or double-ended termination styles.  The versatile and economical WATROD™ tubular heating element from Watlow® lends itself to virtually the entire range of immersion and air heating applications. The single-ended WATROD™ tubular design has both terminals at one end. The opposite end is sealed. Flexible lead wires are 12 in. (305 mm) crimp connected to the terminal pin and have silicone-impregnated fiberglass oversleeves. The double-ended WATROD™, with its round cross-sectional geometry, is highly adaptable for bending—especially when bending is performed in the field. Watlow’s double-ended MULTICOIL™ tubular elements offer various combinations of resistor coils and thermocouples inside one sheath. They have the ability to sense the heater’s internal temperature accurately every time, or offer three-phase capability in one element. Both single- and double-ended WATROD™ share many construction features delivering long life—the resistance wire is centered in the heater sheath and electrically insulated with compacted, high-grade magnesium oxide for superior heating performance. WATROD™ heating elements have a variety of mounting and termination options making them highly popular among industrial customers.