Rated Show Mar 3, 2009
by the Epinions community
Pros: Small size, so easy to store
Cons: Good thing it's small, cause you'll need that second one soon
Summary: The HP21 Inkjet Cartridge is conveniently small, easy to install and calibrates well after installation. In use on our all in ones, they have proven reliable.The printing capacity of this cartridge and its sibling the 22 is small.