Compatible with: Dell Laser 1720 & 1720dn Page Yield*: 6,000 For best results, store in a cool, dry place. Use within 3 years of purchase for optimal performance.*at 5% coverage (ISO/IEC standard) Replaces OEM and Dell manufacturer part numbers: GR332, 310-8707, 310-8709, 310-8706, MW559, RP441, 310-8708 and PY449 Dell is a registered trademark of Dell and is not affiliated with and does not endorse LD Products. Professionally remanufactured by LD Products Please contact us first with any product issues. We want all of our customers to be happy because happiness matters.