Earth Shield Waterstop is proud to announce three new waterstop profiles designed especially for environmental engineered concrete structures, such as waste and water treatment plants. All three profiles are ⅜" thick and have many interlocking ribs to grab into freshly poured concrete. Highlights of the new profiles include: • NSF 61 Certified for drinking water • Chemical resistant TPV polymer construction • Ozone resistant to 500 PPHM • UV resistant • Heat weldable thermoplastic The new profiles can be downloaded in our CAD Library located here: http://www.jpspecialties.com/earth_shield_waterstop/waterstop_tpv/page34/cad.html.