1-Case: (24) Fast Dry Black Ink Cartridges for Address Printing - Compares to HP® C6195A 100% Guaranteed 1-Year. Fast dry MRH95A is an ink cartridge designed for offset stock (Porous) materials used in applications with no heater/dryer. This cartridge is designed for high volume and high speed mail systems and offers good resolution and good optical density even with a slight trade off in density for dry time. Compare to HP C6195A Fast Dry and Collins CM 290.