I need to install a toilet flange in my basement that Im finishing. Im not quite to this stage yet so haven't done much reading or research. However, while at the hardware store, I noticed two types of flanges that would work. One was what I had expected that you just glue and install, but the other had a black rubber seal. What are the differences? Benefits? BTW...The existing rough in is a 4" pipe, so these flanges are the type that insert into the rough in pipe opposed to outside of.
Regards - Jeff