HP 21 Ink Cartridge, Black

Offers approximately 190-page yield to deliver efficient and reliable performance

Operating temperature range of 59-degree Fahrenheit to 95-degree Fahrenheit for safe use

Storage temperature range of 5-degree Fahrenheit to 95-degree Fahrenheit for convenient storage

Pigmented black inks provide crisp, sharp text for your letters and reports

Supplies are easy to select, replace, and install, while an on-screen ink-level indicator in your printer software offers added convenience