15 Proportioning Mop bucket filling Trigger bottle Filling with variable height bottle stand Sink filling Range Fast stroke regulation The large cap provides easy access to the stroke regulating pins whilst remaining secure during use 6 different dosage settings ranging from 5cc to 30cc per stroke 30 cc 5 cc 10 cc 15 cc 20 cc 25 cc Improved check valves Easy Maintenance: unscrew the locknut, remove the fitting, replace the valve Double O-ring seals Valves are the same for top and bottom side Easy modular tube stiffener Ensures the feed tube pulls from the bottom of the chemical container minimising waste and delivery issues