The FD2 is a top quality silver silicone coated fiberglass fabric duct hose for fume and exhaust at high temperatures. It is extremely flexible and has a compression ratio of 5:1. And the external metal strip adds to the superior strength of the hose.
Standard lengths for the hose are 25 foot, but any length is available (contact factory). The compression ratio is 6:1 up to 6" diameters, and 8:1 above that. Flame retardant to UL 94V-0.
Also available with a Teflon coated interior for harsh chemicals. Contact factory.
Temperature range is -65F to 550F.