3M 501 Pad / Filter Retainer (For 5000 / 6000 Series Respirators)
- Pre Filter Retainer 501, used to clamp particulate pre-filters on to gas and vapour filters.
- For use with 3M Respirator 5000 Series, 3M Cartridges 6000 Series and 3M™ Filter Adapter 603
- Measures 10.2cm (high) x 21.5cm (Long) x 11.4cm (Wide)
- Sold in a box of 20
- To be used with 3M 5N11 N95 pads