The Westlake Pipe & Fittings 230030 is a 3" x 3" SHORT TBE PVC SCH80 Nipple. SCH 80 Nipple is a thicker type of pipe. Ideally used in applications that are industrial or commercial in nature. These type of applications require piping that will withstand high pressures and can handle harsh environments. It is a genuine Westlake Pipe & Fittings product.