- Crayflex® Flexible Duct Connector fabric complies to British Standard (BS) 3424 & British Standard (BS) 5438
- Strong airtight lock seams
- Crayflex® fabrics are in compliance with and British Standards (BS) 476 Part 7 (Class 1)
- Larger metal widths to suit Transverse Duct Flanges (TDF), Transverse Duct Connectors (TDC)
- Flexible Duct Connectors uses 24 gauge or 28 gauge galvanized steel sheet complying to ASTM A653 (formerly ASTM A525) & ASTM A924 with Zinc Coating of Z275 (G90) to give added corrosion resistance.
- Fabrics are UV coated for added protection in exposed installations