Italian Military Surplus NATO 40mm Gas Mask Filter New

This Italian NATO 40mm Gas Mask Filter is freshly-rotated out of government stockpiles and now ready for a new assignment. Originally designed for chemical handling and emergency response scenarios. A great complement to any matching 40mm gas mask in your military collection. N-B-1 Model A2B2E2K2P3 R Activated charcoal filter 40mm Fits any gas mask with a 40mm thread 4" diameter Note: For collectible use only