Black Samsung SCX-4521D3 Toner Cartridge, For Laser Printer
Compatible Replacements for Samsung SCX-4521D3 Set of 2 Black Laser Toner Cartridges for use in Samsung SCX-4321, SCX-4521, SCX-4521F, SCX-4521FG, and SCX-4521FR s - Walmart.com
Amazon.com: Clover Remanufactured Toner Cartridge Replacement for Samsung SCX-4521D3 | Black : Office Products
Samsung SCX-4521D3 Toner Cartridge, SCX-4521D3 Black Toner includes Free Shipping at Clickinks.com
Amazon.com: greencycle Compatible Toner Cartridge Replacement for Samsung SCX-4521D3 SCX-4521 SCX4521 Work with SCX-4321 SCX-4521 SCX-4521F SCX-4521FG SCX-4521FR SCX-4321F Printer (Black, 2-Pack) : Office Products