MJ Grey Mechanical Couplings A game changer that is taking PVC DWV to new heightsIPEX is proud to bring more jobsite relief to your crew by introducing MJ GreyTM&n...	Home  | CadOnDemand Registration Sign up now to access the CAD-ON-DEMAND online library where you will find 2D and 3D CAD files of our Xirtec® PVC and Corzan® CPVC Schedule 40 and 80 fittings. Click on the GO button to complete the registration form. Log in using your email address.