Neofit+ Plus System is a non-invasive pipe lining system specially designed for small-diameter potable water service piping. The liner seals small leaks and pinholes in ½-in. to 2-in. ID service piping. It also acts as a barrier between existing lead piping and potable drinking water. The liner is NSF 61-approved and has been tested to a minimum 50-year life expectancy.