3M™ Scott™ Model 74 Twin Cartridge adapter is NIOSH approved for AV-Series and Weld-O-Vista facepieces when using 3M Scott 742 series cartridges and filters. It is a bayonet style adapter with simple, quick quarter turn for easy attachment. The adapter is designed to allow facepieces to be used in negative pressure mode. This adapter has a planned discontinuation effective July 31, 2021. Visit 3M.com/742transition for additional details.

• Replacement part and accessory
• Compatible with 3M Scott 742 series cartridges and filters
• Includes 1 adapter
• Simple, quick quarter turn for easy attachment