Description
MSA Calibration Cylinder Gas, 116 L, (CH4) 1.45%, (O2) 15%, (CO) 60 PPM, (H2S) 20 PPM Part# 10150595 Horiba No ON OFF valve is necessary No ON OFF valve is necessary because the regulator automatically turns itself off when not in use Power Reels: Power reels can be very useful to allow faster or less strenuous operation of longer lengths of tape