This is a compatible Neopost IS-420 high capacity ink cartridge and IS-440 high capacity ink cartridge. It uses Royal Mail Approved smart blue franking ink and it comes directly from Meter Envelopes. Perfectly designed for the Neopost IS-420 and IS-440 franking machine models.
Meter-Envelopes are one of only two companies in the UK that have their own unique brand of franking machine ink, approved by the Royal Mail. The franking ink used in this Neopost IS-420 and IS-440 high capacity ink cartridge is fully compatible with all Neopost IS-420 and IS-440 franking machines. It is guaranteed to last the same amount of impressions and the same life span as an original high capacity cartridge brought directly from Neopost.