For a reliable and cost-effective solution to your printing needs, our compatible toner cartridges for HP CF531A are the perfect choice. With a 5 year guarantee and 900 page yield or volume @ 5% coverage, you can be sure of consistent, top-quality performance from your printer. This laser toner is compatible with the LaserJet Pro MFP M180n and M181fw, and is supported by a 5 year warranty and next day replacement service. Prices exclude VAT, and our products are non-original/non-OEM. With such an extensive guarantee, you can be confident of the quality and reliability of our compatible toner cartridges.