Combining two of our remanufactured Samsung K4092 cartridges into this single product means we can offer you these high quality alternatives at an even lower price. Each of these alternatives to the genuine Samsung K4092S toner cartridge still have the same print quality and high *** page estimated yield, the only difference is the price.We source these remanufactured Samsung SU138A toner cartridges from some of the best production houses in the UK, meaning you can expect a lot from them. Our remanufactured Samsung K4092S toner cartridges are also some of the most competitively priced in the country and come with a 100% satisfaction guarantee.