1/2 Inch Pipe Extender Only works Inside male fittings that have malfunctioned or broken. Type of product: Pipe Extender Specification: This part fits Inside a broken fitting that is glued into another fitting. Most common size reference: 0.5 Inch Additional notes: Best to use a plumbing cleaner then pipe cement to assemble.This Fitting allows you to cut a male fitting flush to whatever it's plumbed into then directly replace the part using this fitting.