Extinguishers of 4.5kg and bigger are fitted with a high pressure discharge hose and discharge nozzle which locates onto a L-shape nozzle holder fixed to the foot ring of the extinguisher. Safequipâs range of stored pressure dry chemical powder extinguishers is suitable for class A (combustible materials). class B (flammable or combustible liquids) and/or class C (electrical) fires or a…