Pitney Bowes DM Infinity Ink Cartridges [2-Pack] PB # 772-2 & 772-1. Specifically designed for models DM16K, DM22K & DM22KR DMInfinity mailing systems & inserter bases. USPS approved, yielding up to 1.1 million impressions. Manufactured by Clover for Pitney Bowes mailing systems. MRP7722BLK compatible. New, not refurbished. [1-Year Replacement Warranty]