Page Yield*: (25,000 pages) compatible with 37X 37 CF237A Black *at 5% coverage (ISO/IEC standard) Enjoy the best prices for a Store-quality photos. Compatible with Printers: MFP M632z, M608n, M608dn, M608x, M609dh, M609dn, M609x, M609x, M631dn, M631h, M631dn, M631z, M632fht, MFP M632h, M633fh, M633z Deliver vivid, crisp text and graphics. Professional compatible replacements manufactured by LD Products. HP is a registered trademark of HP and is not affiliated with and does not endorse LD Products.