Product review (4 stars): Thanks for installation recommendations posted here -- made installation fast and leak-free
If I had not read the installation instructions and recommendations posted here on Amazon for this product I might not have liked it as well as I did.  But I used the ideas here, soaked the disposal end of the pipe in very warm water before inserting in red flange and the installation went fast.  Also used the pipe tape at flange end which prevented leaks.

If you buy this product, read the recommendations for installation here, since there are no instructions from the manufacturer on the package.