Double-jacket fire hoses have an extra layer of synthetic fabric making them more resilient in severe applications. Incidentally, this extra jacket also allows for higher working pressure making them a suitable choice for washdown service. The extra durability does come with a trade-off however, as it makes the hose significantly heavier compared to a single-jacket hose, especially when wet.
1-1/2" X 50 FT DOUBLE-JACKET INDUSTRIAL FIRE HOSE ASSEMBLY C/W HARDCOAT NPSH PAR
APPLICATION Industrial ASSEMBLY FITTINGS Hardcoat NPSH Parallel Pipe ASSEMBLY LENGTH 50 ft ASSEMBLY TYPE Double-Jacket Industrial Fire HOSE I.D. 1-1/2" TEST PRESSURE 600 psi WEIGHT 18 lb WORKING PRESSURE 300 psi