Product review (5 stars): this is what a vent should be
Wanted a sturdy vent pipe for an area where future repairs and replacements will be difficult (so a decade-plus of service would be very useful) and where animal activity is probable.  Looked at several that were disappointing.  This one got good reviews, and when we received it, we found those well deserved.  Solid, sturdy.  What it should be.  Don't think the big box guys stock anything like this.