Koch Chemie Pump Pressure Foam Sprayers. Each unit utilizes a color designation to match Koch Chemie product labels.

Yellow Pressure Sprayers have a 2L capacity and are for foaming products like GSF, NMS, Active Foam etc. NO WHEEL CLEANERS, either acid or alkaline are to be used through a foaming sprayer.

Each Foam Pressure Sprayer arrives (3) foam tips to adjust delivery, a brief instruction booklet to guide you on use and maintaining the sprayer, as well as a tube of silicone oil. 

With a 2L pump sprayer, dilute your chemical up to the 1.5L mark, the remaining 0.5L is utilized to pump pressure into the bottle. When finished spraying, a pull-up release valve dumps built up pressure to prolong the life of the internal seals.