RESPIRATOR PACKAGE, RPB® NOVA 3®, W/ FLOW CONTROL VALVE, INCLUDES MEDIUM SIDE PADS, (NIOSH APPROVAL NO. TC-19C-456 TYPE CE), RPB® RADEX AIRLINE FILTER™ & 50' BREATHING AIR SUPPLY HOSE, 3/8", & UM-100 AIR HOSE COUPLING, MALE This product is compatible...