The WR-6 Sanitize/Rinse/Foam/Low Volume Foam Spray-All is a sanitizer and airless foam applicator with a dual-flow-rate rinse and foam modes. This venturi injection system uses standard city water pressure (35 - 125 PSI) to draw and blend chemical concentrate into the water stream to create an accurately diluted solution. The foaming solution(s) then flows through the discharge hose to a low or medium volume airless foam wand (0.4 GPM or 1.34 GPM @ 40 PSI) which draws in atmospheric air to create and project wet, clinging foam on to any surface. Quick-connect a low or high flow rinse wand to rinse at 1.0 GPM or 5.0 GPM @ 40 PSI. The high flow rinse wand doubles as a sanitizer wand to apply sanitizer in a fan pattern (2.3 GPM @ 40 PSI). Variable flow rates for foaming and rinsing makes this unit ideal for cleaning small or large areas.