Sioux Chief’s No Lead Plumbing Done Quickly push fitting system includes a lineup of copper assemblies and is available in all common fitting sizes from 1/2” through 2” for PEX, CPVC, copper and PERT. PDQ products are for permanent or temporary plumbing applications and can be installed without tools or a torch. All materials used in the PDQ system are no-lead, dezincification-resistant and stress corrosion cracking-resistant. They are immediately testable, removing the need to wait for water to drain from the pipe, and are packaged with PPSU stiffeners for PEX installations.