Suitable for 3 petroltanks of 12 liters. It is fair to say that the only way to obtain a guaranteed profesional result and a nice restored petroltank which will work troublefree many many years its using the whole KREEM product family in the following way. 1.) Clean the petrol tank with F - E tank cleaner 2.) Remove inner rust with PH - SI rust remover 3.) Seal the petrol tank with KREEM WEISS or RED. We only can give you guarantee on this products if all products are used together in a proper way! So we decided to offer you the whole tank repair kit in an unbeatable price! Tank repair kit KREEM WEISS contains: 1 x 12 liter F - E tankcleaner (concentrate), 1 x 12 liter PH - SI rust remover, 1 x 650 gram KREEM WEISS with 125 cc reaction agent. 4.) Instructions in english. YOU SAVE 10 EUR!!!