The JetRoll 688 Series is designed for interior and exterior openings that require equal measures of durability and safety. The 2.0mm PVC curtain is tough enough to withstand moderate windloads and internal air pressures while affording protection against dust and dirt. Designed to fit openings up to 20' x 16' (6096mm x 4877mm), the JetRoll 688 is ideal for high-cycle, interior/exterior applications.