Polylok's Corrugated Adapters allows you to attach 4" & 3" corrugated pipe to our Trench...

Polylok's Corrugated Adapters allows you to attach 4" & 3" corrugated pipe to our Trench / Channel Drain Open Outlet End Cap (PL-90860-OE).

This pipe adapter allows you to connect 4" corrugated pipe to 4" SDR 35 or...

This pipe adapter allows you to connect 4" corrugated pipe to 4" SDR 35 or 4" SCH 40 pipe.