3M 1.21.29.501.00 501 Filter Holder
Special features
- Easily combine 3M™ gas and vapor filters with 3M™ particulate filters 5000 Series
- Connects the 3M™ particulate filters 5000 Series with the 3M™ gas and vapor filters
- Specially designed for 3M™ reusable masks
- Quick and easy to attach
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