Our Universal Dry Chemical Recharge agents consist of a carefully controlled range of particle sizes of monoammonium phosphate, sodium bicarbonate or potassium bicarbonate, blended with a flow-promoting and anti-caking chemical. The agents are formulated and manufactured for both long discharge range and smooth, uninterrupted flow. Each particle is also silicone coated to provide moisture repellency and minimum friction during discharge. 50ABCULC is UL Classified making it ideal for use in many manufacturers’ fire extinguishers per NFPA 10.