Weighing in at just one pound, Panasonic's KX-FA132 Black Fax Replacement Cartridge ensures your fax printer will continue to deliver optimal performance and operate at ideal levels throughout its lifespan. Using high end Panasonic consumables and supplies provides sharp, high quality output, every time. The Panasonic printers and fax machines have been engineered to work together with their custom-designed consumables and supplies to guarantee that your document and graphical printouts are clear and sharp, every time you print. Buy authentic Panasonic products with confidence: Panasonic backs this product with a 100 percent satisfaction guarantee.