3M™ 7000031122 W-2929 Coiled Respirator Hose, 3/8 in Dia Hose, 25 ft L, For Use With 3M™ High Pressure Compressed Air Systems, NIOSH Approved 3M™ 7000031122 W-2929 Coiled Respirator Hose, 3/8 in Dia Hose, 25 ft L, For Use With 3M™ High Pressure Compressed Air Systems, NIOSH Approved