this switch is used for burner control and is activated by a low pressure vacuum threshold near the pump inlet where this switch is mounted on a 'T' fitting

4-1/2" Mounting Size 7/8" Overall Diameter 4 1/2 in Connection Size & Type 7/8 in Unthreaded Hole Arbor Hole Size 7/8 in Diameter x Arbor Hole 4 1/2 in x 7/8 in Connector Size 7/8 in

Quickly absorbs oils

Brand Pyramex Fits Over Glasses Yes Frame Color Black Lens Color Clear Lens Protection Impact Resistant

Walter Weld Cleaning System, 64.2 Oz Tank 40mm this switch is used forDimensions Length 18 1 2 in Overall Height 15 in Width 9 3 4 in Hose Length 13 ft Height 15 in Overall Length 18. 5 in Wand Hose Length 13 ft Details Item Weld Cleaning System Amps 8 A Input Voltage 120V AC Output Voltage 12 to 30V AC DC Application Industrial Cleaning Tank Capacity 64. 2 fl oz Includes (3) Standard High Conductivity Cleaning Pads, Carrying Case, Ground Cable, Narrow Carbon Fiber Brush with Adaptor, PTFE Ring, Tungsten Insert, Wide