LAFFERTY FOAMER MODEL 40 SS COMBO 969725 (8812)This Lafferty foamer is designed to work with a 5 8 GPM pressure washer. It is a "high concentrate" airless foam applicator for quickly applying foaming chemicals at strong dilution rations. Weaker dilution ratios are controlled with metering tips. This foamer draws and blends a high concentration of chemical concentrate into the water stream to create a strong solution. The solution then flows through the airless foam wand which draws in atmospheric