Review on ⚒️ Oatey 14122 Rain Collar 1.25"-1.5" No-Calk Roof Flashing: Efficient Protection in Black by Stephen Hobbs

Part ordered to fit a 3" PVC air vent. Not sure how it should fit. Contacted Revain and said it was the wrong item. They sent a new one but it was the same part .I contacted Oatey via email and phone asking if this was the correct number.Send a picture of the flange and they replied that it is.Not sure how to make a 1.625" hole, to pull on a 3" PVC pipe with a 3.5" OD. It would be nice if the diameter of the hole was specified for the firmware. It would help avoid this problem. Don't risk that to put correct part number on the roof if the part itself is wrong Cut a new hole in the roof and install a new flange from a local hardware store Tried not to cut a hole in the roof.