PA Air Brake hose for Air Brake System Made from PA material Available in ... J844 and DOT FMVSS 106 require • Material:PA,PU etc. • Hose size(OD*ID):12×9,12×8, 8×1, 4 ... turn:110,90,80,70,60,50mm etc. • Helix turns/coil:12,16,18,20,22,24,26,28,30 coils ... ,1/2"fittings etc. or no fitting PA Air Brake hose