| North Safety Acid Gas Cartridge For N Series Yellow Features Easy user seal check. Designed for use with 5500 and 7700 Series half masks and 5400 and 7600 Series full facepieces. Features a lower profile. Filters out different gases. Color - Yellow. For Model - 5400 7600 Full Facepieces 5500 7700 Half... more | | $29.41 FREE shipping go to store |