Ilford Simplicity Film Dealer Stop X 12 pk - Low odour, liquid concentrate, citric acid stop bath in a convenient, single-use SIMPLICITY sachet. Stops the development of 2 x 35mm (135) film or 1 roll of 120 film in a 2-reel developing tank. Liquid concentrate film stop bath Convenient, single-use sachet Stops the development of 2 x 35mm or 1 x 120 film Designed for use in 2-reel, 600ml developing tank Available as single sachets, multi packs of 5, multi packs of 12, or as part of a starter pack ILFORD SIMPLICITY Film Stop Bath is a low odour, citric acid stop bath which stops further development of film when used as part of a standard dev, stop, fix and wash film development process. We recommend that all black & white films are rinsed in a stop bath after development as this can prolong the life of the fixer by neutralising the developer. The SIMPLICITY Film Stop Bath contains ILFORD ILFOSTOP in an easy to use sachet containing the correct amount of photo chemicals to d