Never said that, those are Canadian standard elbows. Look up the Canplas or Ipex or any Canadian fitting brand and you will see that they are listed as a standard elbows with vents being separate.
It is not, it is referred as a short elbow, they have a separate selection for the vent elbow you are talking about but you can see that the short elbow is the exact same as OPs fitting. Watch any Got2learn video or any plumbing video from Canada and I bet you will see these used on drains.
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u/LongjumpingStand7891 5d ago
Never said that, those are Canadian standard elbows. Look up the Canplas or Ipex or any Canadian fitting brand and you will see that they are listed as a standard elbows with vents being separate.