Hayward SP10712SFVA 2-Inch Socket Skim Master In-Ground Concrete Skimmer with Float Valve Skim Master in-ground concrete skimmer with float valve Made of ABS plastic material Designed to use for in ground, concrete and gunite, residential or commercial pools It meets specific NSF commercial requirement; comes with 4-1/2-inch throat length Pipe measures 2-inch socket end connection