B&B Mfg double NH3 trailer and tanks, walking tandem axle, 1,450 gallon tanks plumbed together, dolly front, Tail lights, rear hitch, extendable spring assist hitch, 16.5L-16.1 flotation tires in good shape. Hoses 2030 expiration. These 2010 tanks are banned from filling at the co-ops. If you have your own bullet these tanks work just fine. My Co-op can swap out the two banned tanks for an extra 10K.