PB SL-798-0 Red Fluorescent Ink Cartridge (17ml)A 17ml red fluorescent ink cartridge designed for SendPro postage meters. This cartridge yields approximately 1500 impressions and is USPS approved for official postage use. The ink is smear-resistant and remains readable when wet, making it reliable for envelopes, postcards, and self-mailers. Features plug-and-play installation through the meter menu with no complicated setup steps. Compatible with SendPro C200, C300, C400, and C425 poundsProductdimensions1.9 x 2.9 x 3.3 inchesPartnumberSL-798-0