Complete your drain and sewer pipe with the ADS 4 in. Dia. Snap-In Polyethylene Snap End Cap. This high-quality end cap helps protect your piping from damaging debris and is constructed with durable and long-lasting polyethylene material. Certified ANSI and underground rated, you can be sure this cap will provide the dependability and performance you need. Enjoy convenient installation and peace of mind with this lead-free end cap.