The 3-in-1 sewer adapter is a flexible fitting that makes connection to a sewer inlet easier and less hands-on, even when the inlet threading is stripped or dirty. The adapter can be used without the 4-in-1 adapter, by placing the sewer hose directly in the 3-in-1. It is compatible with 3" NPT, 3-1/2" NPT, and 4" NPT sewer inlets and features wings for easy removal, with holes in the wings to attach a rope if desired.