Our compatible replacements for the Dell Series 33 extra high yield yellow inkjet cartridges are manufactured to the highest specifications and performance standards. Our replacement for the Dell Series 33 ink cartridge is backed by a full 100% satisfaction guarantee. We guarantee that you will get excellent quality printouts from our ink jet cartridges or your money back. Our compatible alternatives to the Series 33 cartridges have updated chips and work with your Dell V525w or V725w printer. Alternative part numbers for this cartridge are 331-7380, 331-7390, Series 33, Series 33R, GRW63, PT22F, MTHX6, TYHTV. LD Cartridges are manufactured in an internationally certified ISO 9002 factory. LD cartridges come with a 100% Two Year money back guarantee and technical support. For use in the following printers: Dell V725w, V525w. We are the exclusive reseller of LD Products brand of high quality printing supplies on Amazon.