ACAT 30 is supplied by the leading manufacturer in car aircon and kills bacteria and fungus which is the root of the problem. Each aerosol is supplied with an extension to inject the foam into the evaporator, full instructions and is sufficient for at least two applications. Send your cheque for £15.95.(p+p inclusive) made payable to Bob Richardson.104 Bennett Way.Dartford Kent.DA2.7JU.and we'll post one to you by return.(offer  available to U.K.only)