The KaiVac 1200 series are the smallest No-Touch Cleaning systems yet, they deliver the same industrial strength capabilities as our other systems. Perfect for smaller jobs or facilities, the 1200 series is compact, lightweight and easy to maneuver. In fact, it's able to fit on many standard janitors' carts. 12 gallon water tank. Flow Rate: .30 GPM. Spray Time: 10 to 40 minutes. Vac Tank: 8 Gal.