Corrugated 3″ External Coupling: – Black HDPE – Conforms to ASTM F405 – Fits 3″ Corrugated Piping
- 3″ External Coupling
- Fits 3″ Corrugated Pipe
Order 24 for case
Pro Tip: Use pipe wrap tape at all connections to help secure fittings and restrict root penetration into the drain system — a leading cause of blockages and premature drainage failure.








