SM-RDP 108 10-Inch by 8-Inch Round Galvanized Plain Reducer

Not too light guage, but be aware that both ends are the same size as the duct and will not slip inside without modifications. I had to manually crimp the end with needle nose pliers to get it to fit inside the duct.

A+

good product

It is what it is!

Very tight fit everything is just as it says it's going to be very good hardened steel but very lightweight