3M3M Adapter for Non-QRS Breathing Tubes This adapter is for 3M non-QRS types of breathing tubes (834000, 834005, 834008), when used in combination with 9100 series welding helmets and M-series headtops. The new Welding Helmets and Versaflo headtops from 3M feature the QRS type of breathing tube (Quick Release Swivel), which enables one-handed connection and release.
Product #: 533505
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