3MR601 Features: -6000 & 7000 SERIES RESPIRATORS. -UNSPC CODE: 46182000. -Respiratory Accessories Respiratory Accessories protection accessory. -ADAPTER QUANTITATIVE FIT TEST FOR. Generic Specifications: -3M Quantitative Fit Test Adapter 601 For use with 3M Respirators 6000 Series and 7000 Series with Bayonet Attachement. Generic Dimensions: -Product weight: 9.5 lbs. Dimensions: Overall Product Weight: -9.5 Pounds.