All V-Series Supplied Air Valves require a supplied air hose to complete the NIOSH-approved respirator system. These hoses are available in many different lengths and are sold separately.
3M 37019, Versaflo Air Regulating Valve Assembly V-300/37019(AAD), 7100077491, 1 EA/Case
$224.35
Factory Stock, 7-10 Day Leadtime, Priced Per Case
Allows the worker to set the airflow to the most comfortable level. Includes the valve and waist belt. It is strictly a regulator and will not warm or cool supplied air to the worker.

Dynabrade 98270 1/2" Male Coupler
Norton 66261014897 2" x 1/4" Bear-Tex NEX Rapid Blend AO Medium Grit TR (Type III) Non-Woven Wheel, 60 Each
3M™ 07011, Supplied Air Respirator Hose W-9435-50/07011(AAD), 7000005373, 1 EA/Case
Dynabrade 51623 .1 hp Straight-Line Extension Pencil Grinder, Central Vacuum, 1/8" Collet
3M 80510, Roloc Disc 777F, P120 YF-weight, TR, 1 in, Die R100N, 7000045622
3M 22405, Roloc Disc 361F, P100 YF-weight, TR, 3 in, Die R300V, 7000045102 
