DOT Type MAWP Trailer Tubes Tube Dimensions Nominal Vol. Cu. Ft.  Helium SCF   Hydrogen SCF  DOT-3AA-2400       "Reconditioned"      2400+ 4 24" x 35'0" 256           42,000           41,666 DOT-3AA-2400       "Reconditioned"      2400+ 30 9-5/8" x 21'-0" 258           40,000           38,500 DOT-3AA-2400       "Reconditioned"      2400+ 38 9-5/8" x 21'-0" 327           50,000           48,500 DOT-3AAX-2400 2400+ 7 22" x 36'-0" 540           88,500           86,000 DOT-3AAX-2900 2900+ 8 22" x 36'-0" 653         107,000         104,000 DOT-3AAX-2400 2400+ 9 22" x 40'-0" 734         120,375         132,000 DOT-3AAX-2400 2400+ 10 22" x 36'-0" 816         134,000         130,000 DOT-3T-2850  "Helium only" 3135 10 22" x 40'-0" 918         176,500    *Ad 12% F.E.T. to new trailers   We can build just about anything from our inventory.         Oil field skids          Custom Trailers         Standard “Used” Trailers with Oil field skids mounted         One-trip 40’ Cargo Containers