Katun Toner Cartridge for HP Specifications: Compatible Brand: HP Compatible Models: LJ ENTERPRISE FLOW M 631 H LJ ENTERPRISE FLOW M 632 Z LJ ENTERPRISE M 607 DN LJ ENTERPRISE M 607 N LJ ENTERPRISE M 608 DN LJ ENTERPRISE M 608 N LJ ENTERPRISE M 608 X LJ ENTERPRISE M 609 DN LJ ENTERPRISE M 609 X LJ ENTERPRISE M 631 DN LJ ENTERPRISE M 631 Z LJ ENTERPRISE MFP M 632 FHT LJ ENTERPRISE MFP M 632 H OEM PN Katun PN Description Yield CF237A / HP37A 51515 Black (Remanufactured Products - Eco Friendly) 11000 CF237X / HP37X 53371 Black (Remanufactured Products - Eco Friendly) 25000 CF237Y / HP37Y 53372 Black (Remanufactured Products - Eco Friendly) 41000