The Weatherhead.50" x.78" Standard Air Conditioning Hose is the perfect choice for your air conditioning system. This hose is designed to withstand the high pressures of 500 psi and is compatible with fittings, connectors and other components in the air conditioning system. The black color of the hose ensures that it will blend in with the other components of your air conditioning system. With its superior construction and design, this hose is the perfect choice for your air conditioning system. FleetPride is your First Click in Heavy Duty®.