The ADS 90 Degree 4 inch Plastic Corrugated Elbows by Advanced Drainage Systems are designed for industrial plumbing and fitting applications. Made of corrosion and rust-resistant plastic, these two-piece elbows feature a 90° shape and two outlets. Manufactured in the United States, they are ideal for drainage systems that require reliable and durable pipe fittings. With a diameter of 4 inches, these elbows provide efficient and effective water flow in various industrial settings.