(1) 6L Class K Grease Fire Extinguisher Needed in Kitchen: IFD #35 During your most recent fire protection inspection at IFD Station #35, the technician noted that the kitchen needs (1) 6L Class K grease fire extinguisher installed for proper protection. The K-Class grease fire extinguisher is crucial to ensure adequate coverage against grease fires. Nelbud proposes to install (1) Class K fire extinguisher in the kitchen for proper protection. The proposal below is all-inclusive and includes all parts and labor. You can accept this proposal electronically or contact me directly.