Review on OATEY 43401 Set-Rite Toilet Flange Extender 🚽 Kit, 1/4 to 1 inch, Red and Yellow by Gus Gutierrez

Got this because I knew I needed to raise the flange because of a new tile job I did recently. What I didn't read soon enough is that to use on cast iron you need an unreinforced wax ring to get a good seal. This means that you need a wax ring without an inner flange. I should have found out beforehand, but I didn't. It also says you can use the included self-tapping screws to drill holes in cast iron. nope I had to pre-drill a 3/16" diameter hole for the screw to fit in and hold properly. Once I installed the flange the rest was easy. but attaching the flange was a bit more difficult. Works well hence my 4 stars given.