Spears 460 Series PVC Pipe Fitting, Adapter, Schedule 40, White, 1/2"Barbed x 1/2" Spigot Adapter for connecting pipes or fittings of different types Barbed male insert on one end and a spigot connection on the other for connecting flexible tubing PVC for corrosion resistance, high strength, and less weight than fittings made from metal Smooth interior finish for reduced friction and material buildup Meets NSF/ANSI 61 Annex G, NSF/ANSI 372 for quality assurance