Neopost IN-300 Ink & IN300 Ink – Compatible Mailmark Ink Cartridge

Neopost IN-300 Ink & IN300 Ink – Compatible Mailmark Ink Cartridge


Click Here To Find Out About Refilling your Neopost IN-300 Ink For Less!

This is a compatible Neopost Mailmark product. It is a compatible Neopost IN-300 Mailmark ink cartridge and a compatible Neopost IN300 Mailmark ink cartridge. This product uses Royal Mail Approved franking ink.


This Neopost IN-300 Mailmark ink cartridge and IN300 Mailmark ink cartridge is perfectly designed for the IN-300 & IN300 Mailmark franking machine models. As a smart meter franking machine the Neopost IN-300 & IN300 machines can now be using blue franking ink.

This is a compatible Mailmark blue ink cartridge, designed and compatible with the Neopost IN-300 & IN300 machines. It is a compatible cartridge and will create a perfect stamp every time for approximately 4,728 envelopes or labels.

Approved ImageRoyal Mail Approved

Royal Mail have performed extensive tests on our ink including many thousands of impressions from most of the Franking Machines available in the market today in addition to models dating back up to 10 years. All impressions were tested to meet readability and compatibility criteria for recognition by the Royal Mails high speed mail sorting machines. Prior to testing, all Approved cartridges gained CE approval and accreditation as part of the very stringent Royal Mail approval process. Mailcoms are one of only two independent companies to gain this fantastic approval in the UK!!

This product is not affiliated, manufactured or endorsed by the original equipment manufacturer ‘Neopost’.

Additional information

Royal Mail Approved




Ideal for

Neopost IN300 & IN-300 Franking Machines

Ink Cartridge Type


Ink Colour


Number of Impressions

Same as specified by Neopost

Original Product Code

NEO342192 & 342192

Original Neopost Price

£145.99 + VAT & Delivery Fee


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