3M™ Versaflo™ BT-63 Length Adjusting Tight Fitting Breathing Tube (BT-60 Series) 3M First Responder Cartridges 4-Point Ratchet - Case of

4-Point Ratchet - Case of 20

Lithium ion battery is approx

3M Speedglas 06-0005-P13 Replacement Welding Lens 9100 with Passive Shade 13

Available in Silver Color

One Size - Box of 2

3M™ Versaflo™ BT-63 Length Adjusting Tight Fitting Breathing Tube (BT-60 Series) 3M First Responder Cartridges 4-Point Ratchet - Case of3M Versaflo BT 63 Length Adjusting Breathing Tube is designed to be used with 3M Full Facepiece Respirators FF 400 Series, 6000 Series, and 7800S Series and the 3M Versaflo Powered Air Purifying Respirator TR 600. When used in an approved configuration, the tight fitting PAPR assembly can provide an assigned protection factor (APF) of 1000 against certain gases, vapors, and particulates.