The Advanced Drainage Systems reducing coupler connects 4" corrugated drain pipe to 3" corrugated pipe in a straight run. Made from durable polyethylene plastic that resists acids, alkalis, and freezing temperatures. The snap-on design provides a secure joint without special tools.

• Joins 4" and 3" corrugated drain pipe
• Polyethylene construction - lightweight and durable
• Snap-on installation for a secure joint
• Resists acids, alkalis, and freezing temperatures
• For residential drainage applications