The 2001FC and 2001FCP welders combine the realibility of the Model 63 and infinite heat control of the Guardian Series. The new design inner tube and nose cone allows the barrel to stay cooler while it blows away toxins that may be created while welding. e.g. PVC. These welders have three different elements, 500w is standard. If 400w or 650w, are needed, you must specify when ordering .Also being similar to the Guardian Series, the 2001FC and 2001FCP have a pressure switch, which will protect the element from burning out by turning off the electrical flow if there is an interupption in the airflow. Comes with 20 ft. cord, air filter, air pressure regulator, air pressure guage, pressure switch, welding tray, carrying case, #4 tacking tip, and #9A round automatic feed tip for 1/8" or 5/32" welding rod.