The Allure wiper arms are no longer made. That said, AM Equipment Manufacturing knew exactly what I needed and makes a drop in replacement model. It's their commercial duty wiper arm 731-2903. They'll take 2-3 weeks to make so I think I'll be using Rain-X for a while. Only one wiper arm broke but I'm replacing both to keep them matching as well as to squirrel the remaining good one just in case. I love this forum!!
2009 Country Coach Veranda 400
2012 Hyundai Elantra 6-speed Manual Toad
2020 Lectric XP E-bike