114 x 229mm DL+ Window Gummed Mailer 3804CBC

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114 x 229mm 90gsm DL+ Window Gummed Mailer Code 3804CBC
Twofold envelopes are compatible with all Twofold folder inserters and franking machines, to help reduce downtime associated with incompatible envelopes.
These envelopes are priced per box of 1000, enquire for the most competitive price and options for storage and call-off service.


It’s ability to work with Laser, Digital and Inkjet technologies and not forgetting the art of writing, these are all areas where this product excels. All this coupled with its Ultra White appearance and quality 120gsm weight makes this the perfect all rounder.

Huge range of envelopes

We offer a wide selection of machine compatible, bespoke and self-seal envelopes in a range of sizes, window sizes and positions.

FREE Storage

You can take advantage of our FREE storage for up to 12 months, allowing you to make savings on larger orders and schedule call off when you need them through the year.

Next Day Delivery

We deliver almost everywhere in the UK and in most cases can deliver next day if ordered before 1.30pm.

If you have any questions about envelopes or packaging for your organisation, just call the team on 0118 951 9800 as they are always happy to help.


See our Returns Policy

Additional information



Envelope Size

114mm x 229mm

Window Size

50mm x 90mm

Window Position

18mm up 20mm in

Horizontal / Vertical Window




Outside Seams


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