The Valterra DWV Sanitary RV Sewer Tee Fitting with 1-1/2" Hub is a great replacement or add on for your Drain, Waste, or Ventilation (DWV) system in your RV. Perfect for connecting two pipes into one, this tee is built with durable ABS plastic that meets ASTM-D2661-2011 and CSA B181.1-2011 standards.• Intended for Drain, Waste, and Ventilation (DWV) Systems• Durable replacement/upgrade unit• Easily connect two lines together• Durable ABS plastic connection• IAPMO listed to standards ASTM-D2661-2011 and CSA B181.1-2011 Built with durable ABS plastic IAPMO listed to standards ASTM-D2661-2011 & CSA B181.1-2011 | Valterra DWV Sanitary Tee, 1-1/2" Hub | ABS Plastic