Professional double action sprayers for washing and cleaning. Viton seals are resistant to most common chemicals and detergents. Level indicator embossed on container marked in ml and pints. The Kwazar 2L foamer makes foaming your car easy and portable, simply fill out your soap mixture to 1.5L mark and start foaming. The bottles are made to resist most mild solvents and acids. For heavy solvent and acids, use the 1.5L Solvent Pump (Black) or 1.5L Acid Pump (Red).