Those two units are made at two different factories, so the differences are tiny and mainly dimensional. The ZD04303 uses a steel caster, whereas the other model uses a rubber caster. I personally find the steel is easier to roll under a load. I'd get the ZD04303 if we were spending my money. Sorry but there won't be any Black Friday offers on this item. Most everything on our site will remain at the same pricing during the holidays because we price our items at the lowest we can offer and leave pricing as-is. We don't really subscribe to the holy-moly sale today, the mega sale tomorrow, and whatever shenanigan sale we can concoct the day after. Thanks for shopping with us Ryan!