The Whirlpool W11545795 Dishwasher Rack Adjuster Assembly is a replacement item made particularly for Whirlpool dishwashers. It allows you to change the height of your dishwasher's upper or bottom rack. When you need to make extra room for tall dishes this adjustable function is useful for glasses on the top rack or on the bottom rack. The rack adjuster assembly is usually made of plastic and aluminum and is mounted on the dishwashing rack's sides. The screws on the assembly can be easily tightened or loosened to change the height of the rack. The Whirlpool W11545795 Dishwasher Rack Adjuster Assembly allows you to precisely adjust the dishwasher's rack so that your dishes are cleaned and fit inside.