Reddit reviews Oatey 74127 3" or 4" PVC General Purpose Cleanout w/ 6" BR Cover,
We found 1 Reddit comments about Oatey 74127 3" or 4" PVC General Purpose Cleanout w/ 6" BR Cover,. Here are the top ones, ranked by their Reddit score.
Strainer Material Brass
This person seems right. It looks like a sewer clean out. Is the other cleanout on the opposite wall (outside) or opposite wall (across the room)?
Six inch drain cover.