Rubber covered fire hose is a lightweight, flexible lay-flat hose specifically designed to be maintenance free. Manufactured from specially formulated synthetic nitrile rubber, this rubber covered hose has excellent resistancy to fuels, chemicals, oils, environmental pollutants, molds, mildews and extreme temperatures. Rubber covered fire hose is designed to pack flat and lay dead straight at full working pressure. Optimized design minimizes friction loss so you can run longer lines and still maintain 100 PSI at the nozzle.