The Knight 2201200 Metering Tip Kit includes 17 assorted color-coded metering tips and a dilution ratio chart for accurately proportioning chemical solutions. Metering tips control the amount of chemical drawn into the water stream, allowing the proper dilution ratio to be selected for the application. Features: Includes 17 assorted metering tips Color-coded for easy identification Includes dilution ratio chart Helps achieve the proper chemical-to-water dilution For Knight proportioners and chemical dispensing systems OEM Knight replacement/accessory part Used in MX series dispensers & Sink Mate models.