The 3/8" OD x 20" Corrugated Lavatory Riser with Nut from Braxton Harris is a versatile plumbing solution for lavatory installations. Constructed from lead-free materials, this riser ensures safe and compliant water delivery. Its corrugated design allows for flexibility and easy installation in tight spaces. The included nut provides a secure connection, making it compatible with various lavatory fixtures. This riser is ideal for both new constructions and renovations, offering durability and reliability in everyday use.