The kit contains all the equipment that is required to process both 35mm and 120 roll films and prints up to 20.3 x 25.4cm (8”x10”). It is an ideal addition to the Paterson Universal Enlarger & 2000D Timer which together make up all of the equipment required to set up a darkroom. The universal tank includes two auto load reels allowing two 35mm films to be processed at the same time. 3 colour coded developing trays handle up to 20.3 x 25.4cm printing paper. The different colours help to ensure that each try is kept exclusively for each type of processing solution, thus avoiding contamination. See also: Paterson Universal Enlarger PTP700/701/702 Paterson 2000D Enlarger Timer PTP745