PVC Schedule 40 is highly durable, with high tensile and impact strength. It is easy to install and has better sound deadening qualities than PVC Schedule 40 DWV Foam Core. Installation requires the use of primer and solvent cement. For DWV applications, gradual sloping DWV fittings must be used. California Prop 65: This product can expose you to chemicals including titanium dioxide andcarbon blackwhich are known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov