and the unit is completely assembled and water tested prior to shipping

it is outfitted with a stainless steel spring

The unit measures 17-1/8 inches in width by 56 inches in height and extends from the mounting surface by 7-1/2 inches

Toilet Tank Material: Vitreous China

For Use With Grainger Item Number: 20CD10

Tough Guy 18 in Round Cleaning, Scrubbing Rotary Brush for 20" Machine Size, Blue - 1MEE4 Height-17" and the unit is completelyRotary Brush; Machine Size: 20"; Pad Brush Size: 18 in; Bristle Material: Polyester; Pad Brush Shape: Round; Floor Application: Cleaning, Scrubbing; Block Size: 18 in; Bristle Dia.: 0. 018 in; Trim Length: 1 5 8 in; Bristle Color: Blue; For Use With: Floor Machines; Includes: 5" Center Hole