Two types of alarms – one audible and one visual – alert user to either a low battery or low flow, such a when a particle filter is fully loaded. LED lights on the battery indicate its charge status on and off the charger.
The 3M Versaflo TR-301N+ is a replacement blower for all TR-300N+ assemblies and kits.

Dynabrade 14230 Rubber Drive Wheel
3M 17607, Repulpable Heavy Duty Double Coated Tape R3287, White, 24 mm x 165,m, 5 mil, 9 rolls per case, 7100028163
3M 72003, Powerflow High Efficiency SP3 Particulate Filter System Component 450-01-01R20, 7000131701, 20 EA/Case 
