To provide an air conditioner hose excellent in a refrigerant barrier property with respect to a new refrigerant and excellent in a water permeable barrier property.

An air conditioner hose includes a tubular innermost layer 1 for circulating a new fluorine refrigerant. The innermost layer 1 is composed of a rubber composition which is mainly composed of the following (A) and (B) and contains the following (C): (A) butyl rubber, (B) acrylonitrile-butadiene copolymer rubber in which content of acrylonitrile is 40 wt.% or more, and (C) a scale filler. An outer periphery of the innermost layer 1 includes a low water permeable layer 3.