Compatible replacement for Pitney Bowes 620-1RN. Page Yield or Volume @ 5% coverage will be approx 11100. This is a Franking Machine Cartridges. Prices exclude VAT and delivery. All products are covered by a 2 year warranty and next day replacement service. Name and numbers are for indicative purposes only. All products are non-original/non-OEM. FITS: DM400, DM500, DM550, DM575