Yes web site not good. But notice the Corp symbol? That symbol is in my glass, clear or almost white. Also real old post on here that has link to mfg hartland.
(found later, edited and added link)
https://manuals.heartlandowners.org/manuals/Plumbing/Shower%20Enclosure/SEA%20Neo%20Angle%20Enclosure/SEA%20NEO%20ANGLE%20A025%20Shower%20Door%20Wiper%20Fix.pdfUsing the door sweep for above link lead me to a025 shower. And it would be nice to see if there is a way to make tub stronger. If your looking for other shower, we have "Holcom" close by. Unless they've moved very near north end of Boeing field.