Our compatible HP DeskJet 3520 ink cartridges are a cost-effective alternative to genuine HP cartridges without sacrificing print quality. These products are designed for full compatibility with your HP printer, providing a hassle-free printing experience. As part of our commitment to providing high quality and cost-effective products, we test each ink cartridges for HP DeskJet 3520 printers for performance and is guaranteed to work with your printer. We believe in our products. Our extensive testing and quality assurance allow us to offer a 1-year warranty on every product we carry. Our dedication to our customers drives us to offer a 100% satisfaction guarantee with every purchase. Our 18 years of experience and expertise allow us to offer lifetime customer support on every order.