RKI Calibration 4 Gas Mixture 81-0154RK-04 Calibration Kits lights will flash at the

lights will flash at the bottom of your view

the blower is very well suited to the toughest work sites

Durable FRDURATEX FR fabric

Exceptional comfort during descents

RKI Calibration 4 Gas Mixture 81-0154RK-04 Calibration Kits lights will flash at theNeed it Sooner? We recommend the PK Safety RKI Equivalent 4 Gas Calibration Gas Mix 34 Liter as a great substitute that is available and ready to ship. The RKI Calibration 4 Gas Mixture in an aluminum 34 liter cylinder. The mixture is 25 ppm H2S 50 ppm CO 50 percent LEL CH4 12 percent 02 in N2. Note: This item ships via UPS Ground due to HazMat restrictions and isn't available for expedited shipping. Calibration gas is not returnable. Please check