Charlotte Pipe DWV Reducing PVC Bushing, 3 In. Sch 30 SPG x 2 In. Sch 40 Hub is specifically designed for use in drain, waste, and vent (DWV) systems, providing a reliable solution for plumbing needs. The Schedule 30 SPG end fits Schedule 30 (model No. 600 series) in-wall fittings, ensuring a secure and efficient connection. The Schedule 40 Hub end allows for solvent welding with Schedule 40 PVC pipes or fittings, making it versatile for adapting and connecting components within DWV systems. This reducing bushing helps maintain proper drainage and ventilation, contributing to the overall efficiency and functionality of plumbing applications. Model Number: PVC 01112 0800HA