The Lasco 449-030 Schedule 40 PVC plug is designed for compatible plumbing applications using a 3 inch slip-style connection. A fitting like this is useful because it creates a simple and dependable solvent-weld closure for larger openings in a PVC plumbing system.This plug is often used when a large branch, port, or line end needs to be sealed cleanly without changing to a threaded fitting style. Installing the correct Lasco plug can help support a cleaner look and a more dependable closure.This Schedule 40 PVC plug is a practical fitting for larger plumbing systems that need reliable 3 inch glued closure during repair, testing, or installation work. Lasco Schedule 40 PVC plug 3 inch slip-style connection Helps seal larger plumbing openings with a glued closure Useful in repair and new plumbing assemblies Supports cleaner and more dependable line sealing