The J-Fill QuattroSelect Safe Gap Dispensing System is a wall-mounted dispenser that accurately dispenses four chemical solutions (not included) into bottles, buckets or floor-care machines. The J-Fill platform is safe, reliable, accurate & sustainable. Smartvalve technology automatically chooses correct flow rate in one operation. SafeGap & Air Gap eductors meets ASSE 1055B standard for backflow prevention. J-Fill uses super-concentrated & hyper-concentrated chemicals & reduces "in-use" cost & solid waste disposal. Spill-Tite cartridges are leakproof & virtually eliminate chemical exposure, tampering & manually diluting products. Rugged steel doors lock & feature built-in product identification windows. System comes with keys & includes drip tray with drain hose, a remote high-flow bucket / autoscrubber fill gun, one-handed 1.5 GPM low-flow & low-foam bottle fill & 8' 3.1 GPM high-flow bucket fill hose with easy-to-use, point-of-use activation.