33" Farmhouse Double Bowl Kitchen Sink

What is the difference between the two model numbers?

I think it’s the width.

Yeah, it’s a sizing difference. One is 33" and the other is 36". Sale has now been updated with this info.

I just purchased the 36" Dbl Bowl Sink, which was over 120$ cheaper than any place (Home Depot, Wayfair, Amazon)… well done!

What does the R20 mean on the item code?

Vendor says:
The R20 refers to the corner radius of the sink. The 2014 models have a slightly larger rounded corners R20 (20 degree radius corner).