DESCRIPTION 1967 Lubbock NH3 Transport Trailer (JN0253, Unit 24426), 1967 Lubbock 9,200 gallon NH3 tank, National Board #1050, S/N 56566, Blackmer pump, tandem axle, air ride suspension, 11R22.5 tires, aluminum rims. Notes: This trailer has thin spots and failed 5 year IP inspection.