Veris AA37 SKU: AA37 $126.98 (0)No Reviews yet Quantity -+ Add to Shopping Cart Limited Factory Stock Details 100 ppm carbon monoxide test gas. 17 liter canister for use with AA32 verification kit. (Additional shipping or handling charges may apply. Contact s... Details Back Details100 ppm carbon monoxide test gas. 17 liter canister for use with AA32 verification kit. (Additional shipping or handling charges may apply. Contact sales@energycontrol.com for a quote.) Reviews 0 Back Ratings & ReviewsNo reviews availableBe the first to Write a Review