Philips PFA 421 Black Inkjet Cartridge for use with IPF 131/141/171/146/IPF174, IPF 176. Page yield 500. High quality cartridge ensures all documents sent and received are comprehensible, making this cartridge ideal for use at home or in the office when clarity is of importance. Containing high quality cartridge, this cartridge produces crisp, clear lines and vivid images across its entire lifecycle making it ideal for use at home or in the office. Phillips inks are manufactured to high standards and undergo rigorous testing to ensure they deliver top quality results for each and every print.