![3M Buckle FF-400-01](http://hausoftools.com/cdn/shop/files/3M-7000052734_1_{width}x.jpeg?v=1711734536)
3M Buckle FF-400-01
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- Replacement part to use with 3M Ultimate FX Full Facepiece Reusable Respirators FF-401, FF-402, and FF-403 (sold separately)
- Includes six head harness buckles
- Pack includes six head harness buckles
- Made of durable plastic
- Replaceable part can potentially result in respiratory equipment cost savings