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C5 Window Envelopes

Basildon Bond C5 Pocket Envelope Window White (Pack of 500) J80119
These environmentally friendly Basildon Bond envelopes are made from smooth, white, 100% recycled 120gsm paper. With a simple and secure peel and seal closure, these envelopes also feature a convenient address window made from 100% biodegradable film..
From £38.93 Inc. VAT
From £32.44 Ex. VAT
Save 52%
RRP £81.25 Inc. VAT
RRP £67.71 Ex. VAT
Pack size: 1
Free delivery
Free delivery
JDJ80119
30 In Stock
Envelope C5 Window 90gsm Self Seal White Boxed (Pack of 500) WX3406 Budget product
Made of crisp, quality 90gsm paper, these C5 envelopes feature a self seal closure for security in transit and a convenient address window measuring 90 x 45mm. These C5 envelopes are suitable for an unfolded A5 sheet, or an A4 sheet folded once. This..
From £12.48 Inc. VAT
From £10.40 Ex. VAT
Save 91%
RRP £133.01 Inc. VAT
RRP £110.84 Ex. VAT
Pack size: 1
Free delivery over £30
Free delivery over £36
WX3406
787 In Stock
Evolve Recycled C5 Envelopes Window Self Seal 100gsm White (Pack of 500) RD7084
These environmentally friendly Evolve pocket envelopes are made from quality 100% recycled 100gsm paper. The C5 envelopes feature a convenient address window measuring 45 x 90mm and a simple self-seal closure. Suitable for A4 sheets folded once or un..
From £29.20 Inc. VAT
From £24.33 Ex. VAT
Save 54%
RRP £62.84 Inc. VAT
RRP £52.37 Ex. VAT
Pack size: 1
Free delivery over £30
Free delivery over £36
BLK93003
Out of stock
New Guardian C5 Envelope Window Peel/Seal Manilla (Pack of 250) F26639
These New Guardian envelopes provide superior protection and strength with durable, heavyweight 130gsm paper. These C5 envelopes feature an extra strong Power-Tac peel and seal closure with an easy open tear strip and convenient address window measur..
From £23.40 Inc. VAT
From £19.50 Ex. VAT
Save 52%
RRP £48.29 Inc. VAT
RRP £40.24 Ex. VAT
Pack size: 1
Free delivery over £30
Free delivery over £36
JDF26639
Stock Low (1)
New Guardian C5 Envelope Window Self Seal Manilla (Pack of 250) A23013
These New Guardian envelopes provide superior protection and strength with durable, heavyweight 130gsm paper. Suitable for A4 documents folded once or unfolded A5 documents, the C5 envelopes feature a simple self seal closure and convenient address w..
From £21.44 Inc. VAT
From £17.87 Ex. VAT
Save 52%
RRP £44.24 Inc. VAT
RRP £36.87 Ex. VAT
Pack size: 1
Free delivery over £30
Free delivery over £36
JDA23013
7 In Stock
New Guardian C5 Window Envelope Manilla (Pack of 250) FOC Post-it Notes Yellow Pk6 JDF814005 Special offer
These New Guardian envelopes provide superior protection and strength with durable, heavyweight 130gsm paper. These C5 envelopes feature an extra strong Power-Tac peel and seal closure with an easy open tear strip and convenient address window measur..
From £23.42 Inc. VAT
From £19.52 Ex. VAT
Save 62%
RRP £61.48 Inc. VAT
RRP £51.23 Ex. VAT
Pack size: 1
Free delivery over £30
Free delivery over £36
JDF814005
Out of stock
Plus Fabric C5 Envelopes Window Peel and Seal 120gsm White (Pack of 500) E24970
These Plus Fabric envelopes feature durable 120gsm bright white paper and a simple peel and seal closure with Power-Tac adhesion for a quick, strong seal. The envelopes also feature a convenient easy open tear strip and address window measuring 100 x..
From £48.44 Inc. VAT
From £40.37 Ex. VAT
Save 58%
RRP £114.58 Inc. VAT
RRP £95.48 Ex. VAT
Pack size: 1
Free delivery
Free delivery
JDE24970
32 In Stock
Plus Fabric C5 Envelopes Window Self Seal 120gsm White (Pack of 500) C26870
These Plus Fabric envelopes feature durable 120gsm bright white paper and a simple self-seal closure for ease of use. The envelopes also feature a convenient address window measuring 100 x 40mm. These C5 envelopes are suitable for unfolded A5 documen..
From £47.05 Inc. VAT
From £39.21 Ex. VAT
Save 55%
RRP £104.87 Inc. VAT
RRP £87.39 Ex. VAT
Pack size: 1
Free delivery
Free delivery
JDC26870
Stock Low (5)
Postmaster Envelope 162x238mm High Window Gummed 90gsm White (Pack of 500) A29984
Made from bright 90gsm white paper, these Postmaster envelopes have been designed for, and tested on, all known makes of mailing machine, from desktop to full scale. They feature an oversized format for easier insertion of letters and a gummed flap d..
From £47.59 Inc. VAT
From £39.66 Ex. VAT
Save 55%
RRP £105.01 Inc. VAT
RRP £87.51 Ex. VAT
Pack size: 1
Free delivery
Free delivery
JDA29984
Out of stock
Q-Connect C5 Envelopes Window Pocket Peel and Seal 100gsm White (Pack of 500) IP53
Ideal for everyday use, these Q-Connect envelopes are made from quality 100gsm white paper and feature an easy to use, secure peel and seal closure, and convenient address window measuring 45 x 90mm. The C5 envelopes are suitable for an A4 sheet fold..
From £17.36 Inc. VAT
From £14.47 Ex. VAT
Save 85%
RRP £114.98 Inc. VAT
RRP £95.82 Ex. VAT
Pack size: 1
Free delivery over £30
Free delivery over £36
KF03290
257 In Stock
Q-Connect C5 Envelopes Window Pocket Peel and Seal 115gsm Manilla (Pack of 500) KF97370
Ideal for everyday use, these environmentally friendly Q-Connect pocket envelopes are made from 85% recycled 115gsm paper. The envelopes feature an easy to use, secure peel and seal closure, and convenient address window measuring 90 x 45mm. The C5 e..
From £18.91 Inc. VAT
From £15.76 Ex. VAT
Save 74%
RRP £73.70 Inc. VAT
RRP £61.42 Ex. VAT
Pack size: 1
Free delivery over £30
Free delivery over £36
KF97370
54 In Stock
Q-Connect C5 Envelopes Window Pocket Self Seal 100gsm White (Pack of 500) 9007500
These Q-Connect pocket envelopes are made from 100gsm paper and feature a self-seal adhesive flap. Featuring a large address window for printed letters and documents. These C5 envelopes measure 229 x 162mm and are designed for unfolded A5 documents o..
From £16.92 Inc. VAT
From £14.10 Ex. VAT
Save 88%
RRP £142.37 Inc. VAT
RRP £118.64 Ex. VAT
Pack size: 500
Free delivery over £30
Free delivery over £36
KF71466
74 In Stock
Q-Connect C5 Envelopes Window Pocket Self Seal 90gsm White (Pack of 25 x 25) KF02718
Ideal for everyday use, these Q-Connect envelopes are made from quality 90gsm white paper and feature an easy to use, secure self-closure, and convenient address window measuring 45 x 90mm. The C5 envelopes are suitable for an A4 sheet folded once or..
From £38.33 Inc. VAT
From £31.94 Ex. VAT
Save 80%
RRP £191.60 Inc. VAT
RRP £159.67 Ex. VAT
Pack size: 20
Free delivery
Free delivery
KF02718
42 In Stock
Q-Connect C5 Envelopes Window Pocket Self Seal 90gsm White (Pack of 500) 2820
Ideal for everyday use, these Q-Connect envelopes are made from quality 90gsm white paper and feature an easy to use, secure self-seal closure, and convenient address window measuring 45 x 90mm. The C5 envelopes are suitable for an A4 sheet folded on..
From £14.04 Inc. VAT
From £11.70 Ex. VAT
Save 90%
RRP £139.21 Inc. VAT
RRP £116.01 Ex. VAT
Pack size: 1
Free delivery over £30
Free delivery over £36
KF3406
754 In Stock
Q-Connect C5 Envelopes Window Pocket Self Seal 90gsm White (Pack of 500) 9000020
These Q-Connect pocket envelopes are made from 90gsm paper and feature a self-seal adhesive flap. Featuring a large address window for printed letters and documents. These C5 envelopes measure 229 x 162mm and are designed for unfolded A5 documents or..
From £13.73 Inc. VAT
From £11.44 Ex. VAT
Save 91%
RRP £153.74 Inc. VAT
RRP £128.12 Ex. VAT
Pack size: 500
Free delivery over £30
Free delivery over £36
KF71463
368 In Stock
Q-Connect Machine Envelope 162x238mm Window Gummed 80gsm White (Pack of 500) KF71434
Suitable for use in mailing machines, these Q-Connect wallet envelopes are made from strong, lightweight 80gsm paper with a gummed closure and convenient address window measuring 45 x 90mm. Ideal for high volume mailing needs, these oversized C5 enve..
From £14.82 Inc. VAT
From £12.35 Ex. VAT
Save 87%
RRP £115.15 Inc. VAT
RRP £95.96 Ex. VAT
Pack size: 1
Free delivery over £30
Free delivery over £36
KF71434
138 In Stock
Basildon Bond C5 Pocket Envelope Window White (Pack of 500) J80119
From £38.93 Inc. VAT
From £32.44 Ex. VAT
Save 52%
RRP £81.25 Inc. VAT
RRP £67.71 Ex. VAT
5+ £30.00 Ex. VAT £36.00 Inc. VAT
10+ £27.91 Ex. VAT £33.49 Inc. VAT
These environmentally friendly Basildon Bond envelopes are made from smooth, white, 100% recycled 120gsm paper. With a simple and secure peel and seal closure, these envelopes also feature a convenient address window made from 100% biodegradable film..
Free delivery
Free delivery
JDJ80119
30 In Stock
Envelope C5 Window 90gsm Self Seal White Boxed (Pack of 500) WX3406
From £12.48 Inc. VAT
From £10.40 Ex. VAT
Save 91%
RRP £133.01 Inc. VAT
RRP £110.84 Ex. VAT
5+ £10.16 Ex. VAT £12.19 Inc. VAT
10+ £9.85 Ex. VAT £11.82 Inc. VAT
25+ £9.49 Ex. VAT £11.39 Inc. VAT
50+ £8.96 Ex. VAT £10.75 Inc. VAT
Made of crisp, quality 90gsm paper, these C5 envelopes feature a self seal closure for security in transit and a convenient address window measuring 90 x 45mm. These C5 envelopes are suitable for an unfolded A5 sheet, or an A4 sheet folded once. This..
Free delivery over £30
Free delivery over £36
WX3406
787 In Stock
Evolve Recycled C5 Envelopes Window Self Seal 100gsm White (Pack of 500) RD7084
From £29.20 Inc. VAT
From £24.33 Ex. VAT
Save 54%
RRP £62.84 Inc. VAT
RRP £52.37 Ex. VAT
5+ £22.93 Ex. VAT £27.52 Inc. VAT
10+ £21.67 Ex. VAT £26.00 Inc. VAT
These environmentally friendly Evolve pocket envelopes are made from quality 100% recycled 100gsm paper. The C5 envelopes feature a convenient address window measuring 45 x 90mm and a simple self-seal closure. Suitable for A4 sheets folded once or un..
Free delivery over £30
Free delivery over £36
BLK93003
Out of stock
New Guardian C5 Envelope Window Peel/Seal Manilla (Pack of 250) F26639
From £23.40 Inc. VAT
From £19.50 Ex. VAT
Save 52%
RRP £48.29 Inc. VAT
RRP £40.24 Ex. VAT
5+ £18.32 Ex. VAT £21.98 Inc. VAT
10+ £17.27 Ex. VAT £20.72 Inc. VAT
These New Guardian envelopes provide superior protection and strength with durable, heavyweight 130gsm paper. These C5 envelopes feature an extra strong Power-Tac peel and seal closure with an easy open tear strip and convenient address window measur..
Free delivery over £30
Free delivery over £36
JDF26639
Stock Low (1)
New Guardian C5 Envelope Window Self Seal Manilla (Pack of 250) A23013
From £21.44 Inc. VAT
From £17.87 Ex. VAT
Save 52%
RRP £44.24 Inc. VAT
RRP £36.87 Ex. VAT
5+ £16.79 Ex. VAT £20.15 Inc. VAT
10+ £15.83 Ex. VAT £19.00 Inc. VAT
These New Guardian envelopes provide superior protection and strength with durable, heavyweight 130gsm paper. Suitable for A4 documents folded once or unfolded A5 documents, the C5 envelopes feature a simple self seal closure and convenient address w..
Free delivery over £30
Free delivery over £36
JDA23013
7 In Stock
New Guardian C5 Window Envelope Manilla (Pack of 250) FOC Post-it Notes Yellow Pk6 JDF814005
From £23.42 Inc. VAT
From £19.52 Ex. VAT
Save 62%
RRP £61.48 Inc. VAT
RRP £51.23 Ex. VAT
These New Guardian envelopes provide superior protection and strength with durable, heavyweight 130gsm paper. These C5 envelopes feature an extra strong Power-Tac peel and seal closure with an easy open tear strip and convenient address window measur..
Free delivery over £30
Free delivery over £36
JDF814005
Out of stock
Plus Fabric C5 Envelopes Window Peel and Seal 120gsm White (Pack of 500) E24970
From £48.44 Inc. VAT
From £40.37 Ex. VAT
Save 58%
RRP £114.58 Inc. VAT
RRP £95.48 Ex. VAT
5+ £38.22 Ex. VAT £45.86 Inc. VAT
10+ £36.28 Ex. VAT £43.54 Inc. VAT
These Plus Fabric envelopes feature durable 120gsm bright white paper and a simple peel and seal closure with Power-Tac adhesion for a quick, strong seal. The envelopes also feature a convenient easy open tear strip and address window measuring 100 x..
Free delivery
Free delivery
JDE24970
32 In Stock
Plus Fabric C5 Envelopes Window Self Seal 120gsm White (Pack of 500) C26870
From £47.05 Inc. VAT
From £39.21 Ex. VAT
Save 55%
RRP £104.87 Inc. VAT
RRP £87.39 Ex. VAT
5+ £37.00 Ex. VAT £44.40 Inc. VAT
10+ £35.03 Ex. VAT £42.04 Inc. VAT
These Plus Fabric envelopes feature durable 120gsm bright white paper and a simple self-seal closure for ease of use. The envelopes also feature a convenient address window measuring 100 x 40mm. These C5 envelopes are suitable for unfolded A5 documen..
Free delivery
Free delivery
JDC26870
Stock Low (5)
Postmaster Envelope 162x238mm High Window Gummed 90gsm White (Pack of 500) A29984
From £47.59 Inc. VAT
From £39.66 Ex. VAT
Save 55%
RRP £105.01 Inc. VAT
RRP £87.51 Ex. VAT
5+ £37.34 Ex. VAT £44.81 Inc. VAT
10+ £35.28 Ex. VAT £42.34 Inc. VAT
Made from bright 90gsm white paper, these Postmaster envelopes have been designed for, and tested on, all known makes of mailing machine, from desktop to full scale. They feature an oversized format for easier insertion of letters and a gummed flap d..
Free delivery
Free delivery
JDA29984
Out of stock
Q-Connect C5 Envelopes Window Pocket Peel and Seal 100gsm White (Pack of 500) IP53
From £17.36 Inc. VAT
From £14.47 Ex. VAT
Save 85%
RRP £114.98 Inc. VAT
RRP £95.82 Ex. VAT
5+ £14.21 Ex. VAT £17.05 Inc. VAT
10+ £13.97 Ex. VAT £16.76 Inc. VAT
25+ £13.27 Ex. VAT £15.92 Inc. VAT
50+ £12.65 Ex. VAT £15.18 Inc. VAT
Ideal for everyday use, these Q-Connect envelopes are made from quality 100gsm white paper and feature an easy to use, secure peel and seal closure, and convenient address window measuring 45 x 90mm. The C5 envelopes are suitable for an A4 sheet fold..
Free delivery over £30
Free delivery over £36
KF03290
257 In Stock
Q-Connect C5 Envelopes Window Pocket Peel and Seal 115gsm Manilla (Pack of 500) KF97370
From £18.91 Inc. VAT
From £15.76 Ex. VAT
Save 74%
RRP £73.70 Inc. VAT
RRP £61.42 Ex. VAT
5+ £15.47 Ex. VAT £18.56 Inc. VAT
10+ £15.20 Ex. VAT £18.24 Inc. VAT
Ideal for everyday use, these environmentally friendly Q-Connect pocket envelopes are made from 85% recycled 115gsm paper. The envelopes feature an easy to use, secure peel and seal closure, and convenient address window measuring 90 x 45mm. The C5 e..
Free delivery over £30
Free delivery over £36
KF97370
54 In Stock
Q-Connect C5 Envelopes Window Pocket Self Seal 100gsm White (Pack of 500) 9007500
From £16.92 Inc. VAT
From £14.10 Ex. VAT
Save 88%
RRP £142.37 Inc. VAT
RRP £118.64 Ex. VAT
5+ £13.43 Ex. VAT £16.12 Inc. VAT
10+ £12.83 Ex. VAT £15.40 Inc. VAT
25+ £12.07 Ex. VAT £14.48 Inc. VAT
These Q-Connect pocket envelopes are made from 100gsm paper and feature a self-seal adhesive flap. Featuring a large address window for printed letters and documents. These C5 envelopes measure 229 x 162mm and are designed for unfolded A5 documents o..
Free delivery over £30
Free delivery over £36
KF71466
74 In Stock
Q-Connect C5 Envelopes Window Pocket Self Seal 90gsm White (Pack of 25 x 25) KF02718
From £38.33 Inc. VAT
From £31.94 Ex. VAT
Save 80%
RRP £191.60 Inc. VAT
RRP £159.67 Ex. VAT
5+ £30.00 Ex. VAT £36.00 Inc. VAT
10+ £28.28 Ex. VAT £33.94 Inc. VAT
Ideal for everyday use, these Q-Connect envelopes are made from quality 90gsm white paper and feature an easy to use, secure self-closure, and convenient address window measuring 45 x 90mm. The C5 envelopes are suitable for an A4 sheet folded once or..
Free delivery
Free delivery
KF02718
42 In Stock
Q-Connect C5 Envelopes Window Pocket Self Seal 90gsm White (Pack of 500) 2820
From £14.04 Inc. VAT
From £11.70 Ex. VAT
Save 90%
RRP £139.21 Inc. VAT
RRP £116.01 Ex. VAT
5+ £11.50 Ex. VAT £13.80 Inc. VAT
10+ £11.31 Ex. VAT £13.57 Inc. VAT
25+ £10.85 Ex. VAT £13.02 Inc. VAT
50+ £10.34 Ex. VAT £12.41 Inc. VAT
Ideal for everyday use, these Q-Connect envelopes are made from quality 90gsm white paper and feature an easy to use, secure self-seal closure, and convenient address window measuring 45 x 90mm. The C5 envelopes are suitable for an A4 sheet folded on..
Free delivery over £30
Free delivery over £36
KF3406
754 In Stock
Q-Connect C5 Envelopes Window Pocket Self Seal 90gsm White (Pack of 500) 9000020
From £13.73 Inc. VAT
From £11.44 Ex. VAT
Save 91%
RRP £153.74 Inc. VAT
RRP £128.12 Ex. VAT
5+ £11.24 Ex. VAT £13.49 Inc. VAT
10+ £11.05 Ex. VAT £13.26 Inc. VAT
25+ £10.69 Ex. VAT £12.83 Inc. VAT
50+ £10.35 Ex. VAT £12.42 Inc. VAT
These Q-Connect pocket envelopes are made from 90gsm paper and feature a self-seal adhesive flap. Featuring a large address window for printed letters and documents. These C5 envelopes measure 229 x 162mm and are designed for unfolded A5 documents or..
Free delivery over £30
Free delivery over £36
KF71463
368 In Stock
Q-Connect Machine Envelope 162x238mm Window Gummed 80gsm White (Pack of 500) KF71434
From £14.82 Inc. VAT
From £12.35 Ex. VAT
Save 87%
RRP £115.15 Inc. VAT
RRP £95.96 Ex. VAT
5+ £12.13 Ex. VAT £14.56 Inc. VAT
10+ £11.91 Ex. VAT £14.29 Inc. VAT
25+ £11.50 Ex. VAT £13.80 Inc. VAT
50+ £11.12 Ex. VAT £13.34 Inc. VAT
Suitable for use in mailing machines, these Q-Connect wallet envelopes are made from strong, lightweight 80gsm paper with a gummed closure and convenient address window measuring 45 x 90mm. Ideal for high volume mailing needs, these oversized C5 enve..
Free delivery over £30
Free delivery over £36
KF71434
138 In Stock
Showing 1 to 16 of 16 (1 Pages)

C5 Window Envelopes (A5) – 229mm x 162mm

C5 Window Envelopes measure 229mm x 162mm and are sometimes referred to as A5 window envelopes. They are one of our most popular envelopes as the window allows the user to display the recipient’s postal address without the need for an address label.

We can supply C5 window envelopes in a variety of weights, colours, seal types and pack sizes both with and without a window. We also stock C5 envelopes from industry leading manufactures including Basildon Bond, Evolve, Postmaster, New Guardian and Plus Fabric amongst others. We also stock our own brand Q Connect C5 Window Envelopes which provide a high quality low cost alternative to the other brands we supply.

These envelopes are suitable for an A4 sheet folded once or an unfolded A5 sheet. They are also classed by Royal Mail as a small letter as long as the thickness is less than 5mm and the overall weight is less than 100g making it a great choice for controlling your postage costs.

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