Wayne Parham Messages: 18787 Registered: January 2001
Illuminati (33rd Degree)
The routing depth for the H290 is 3/8" and the depth for the 2226 is 5/8". However, I'd go 1/16" more to give room for a gasket. The O-Ring that comes with the 2226 is neat, but I prefer cutting my own gaskets from PVC. You can get it at any hardware store as shower pan material.
We glue a ring of wood behind the routed groove to give it added thickness and strength.