Speed-Flex hose is intended for use with Speed-Seal hose ends only. No other Earl's hose end is intended for use with Speed-Flex hose. The use of other manufacturers hose ends is not recommended. The use of stainless braid protected PTFE lined brake hose assemblies will result in a firmer brake pedal, improved brake pedal “feel” and better brake modulation. Carbon lined hose reduces the risk of static electricity