FLEX 4D from MaxLiner USA can be used for lining 4- to 6-inch transitions and around multiple bends up to 90 degrees. This needle-punched PE felt liner offers a flexible PU coating and specially designed stitched seam, which finishes with smooth radial expansion and minimal wrinkling in bends. It can be inverted or pulled-in-place and provides a minimum installed thickness of 3 mm in 6-inch pipe. This eliminates the waste and worry of the transition location and diameter change. It is the latest addition to a suite of comprehensive, installer-friendly solutions designed for optimal performance based on in-the-field requirements. 877/426-5948; www.maxlinerusa.com.