CO² Bottles All ACD CO² bottles are D.O.T. approved and NHRA accepted. #7500 $80.00   The ACD 10oz. CO² bottle is properly labeled for easy refilling. The 10oz. bottle never need re-certification. 1 filling good for over 500 activations of the ACD shifter or throttle control. 2" diameter by 14" tall #2500 $108.00   The ACD 2½ CO² bottle is used in many high volume applications such as Lenco's. 4 3/8" diameter by 14" tall.