Red. This Thomas Glover PowerX 3ltr Multi Use Foam Extinguisher contains 3 litres of multi-use foam, making it ideal for use against class A and B fires. It comes complete with wall bracket for hanging, plus coated steel levers. It is kitemarked to BS EN3 and comes with a 5 year guarantee.. Kitemarked to BS EN3. Multi-use foam. Inclusive of pressure release valve. Easy gauge testing with needle test