Used Stainless Steel Liquid Tanker Trailer, approximately 3,750 gallons, built by Fruehauf Corp, 1972, S/N: UNP433701. Mat'l: SA-240-304L-SS. Approx 32' Long x 59" Radius. Max W.P: 35 PSI @ 100 deg F. Shell Thickness: Top - .138", Heads & Bottom - .167". NB #39.