This commercial item description (CID) covers woven-jacketed rubber, or latex or rubber-coated, fabric or thermoplastic resin-lined fire fighting hoses with couplings. Class A
hose is intended for use on pumping engines and in places where service conditions require
additional protection against wear by the extra jacket. Types I and II, class B hose is intended for
use with fire hydrants, stand-pipes, reels, and places where abrasion of the jacket is not
considered severe. Type III, class B hose is intended for general use and for use on fire fighting
equipment. Hose covered by this CID may be used for water purification equipment and for the conveying of potable water when the Food and Drug Administration (FDA) 21 CFR 177.2600
requirements have been met.