Flexible Corrugated Coupling Drainage Pipe Connector, Connects to 4-in. Pipe

Works good not very thick but is good for joining corrugated

Did not assemble well

Worked

Seems kind of flimsy. I worked about it getting crushed.

It needs to be cut longer, poor quality

Did not fit

It fits well with the other 4 inch drain pipe I am using. Other connectors I purchased from Home Depot did not fit.

If your using all flex stuff I assume it works fine. Thin material but if just needing for Flex system it would work fine. Description says it works with other systems, not true, its 4in vs box store and some pieces on Amazon are about 4.5in and these get swallowed. Will return as I need to match with the thicker stuff and run underground, canceled the pipe in time. Its 4in vs 4.5in on standard more rigid parts.