Description Features Product Specs. Single-ply silver silicone coated fiberglass fabric hose mechanically crimped in a continuous process. Fabric is locked around a coated steel wire by a metal strip formed into a clip Metal strip acts as a wearstrip and offers outstanding external abrasion resistance Extremely flexible & compressible Manufactured with flame retardant materials Ideal for medium temperature heater & floor exhaust applications Available with a non-marking thermoplastic rubber clip cover to protect the helix & the equipment that is attached to the hose Standard Min. Inside Diameter = 4", consult sales team for pricing & minimums on smaller sizes Standard Max. Inside Diameter = 18", consult sales team for pricing & minimums on larger sizes Excellent hydrolysis & microbial resistance Negative pressure fan system with ambient air inlet recommended to maximize effectiveness and life of duct Product Specs Line Flex-Lok Material Coated Fabric Inside Diameter Min: 3" Max: 20" Temperature Low: -65° High: 550° Length 25' Product Datasheet Download Datasheet