100% Satisfaction Guarantee! One Year Warranty! Brand: Generic Brand / New Compatible Replacement for HP 37X CF237X Color Type: Black Shelf Life: 2 Years With Chip: Yes Page-Yield: Up to 25,000 pages per 37X CF237X Black For use with HP LaserJet Enterprise M607n/M607dn/ M608dn/M608n/ M608x/M609dn/ M609x/M608dh/ M609dh, For use with HP LaserJet Enterprise MFP M632h/M632fht/M631z/M633fh/M631dn, For use with HP LaserJet Enterprise Flow MFP M631h/M632z/M633z 100% Compatible High Quality Replace For HP 37X CF237X Our products are certified with ISO 9001 and ISO 14001. If you are not 100% satisfied with your purchase, you can return your order to us within 30 days for a full refund or free replacement, return shipping is absolutely Free.