R1100 Cooling System features a stainless steel construction which eliminates coolant contamination due to electrolysis or chemical reactions. All units are plumbed with copper tubing and reinforced hose. No external plumbing is required because of closed loop water system. A water float gauge and filler cap are combined in a single unit multi-purpose sight glass which enables operator to observe return water at a distance. Water filter on pump inlet protects pump and extends pump life. Visible water level and flow sight glass. Thermal overload. 8 foot power cord. 3 gallon reservoir. Gear pump. 115 vac