The Water Tenders are an all-new design for the Union Pacific 7-car Excursion Train and are sold as a two-pack for modelers to supplement their FEF-3 or other UP steam locomotives. Just like the prototype models, the two tenders are not identical, having (in addition to one car having an externally mounted American Flag plate) different weld mark details which will be replicated on the models of the two cars, ensuring that their unique spirit is preserved when translated into model form.