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BMS Super Forms E40338S #9 Double Window Envelope Self Seal P2124848BMS-E40338S https://cdnimages.opentip.com/full/BMS/BMS-E40338S.jpg Super Forms E40338S #9 Double Window Envelope Self Seal Use this double window envelope for convenience when mailing checks. To confirm compatibility with your checks, order a free sample or call our customer service team.Specifications:Size: #9Top Window Size: 7/8\" x 3 7/8\"Top Window From Left Side: 3/8\"Top Window From Bottom: 2 1/2\"Bottom Window Size: 1\" x 3 7/8Bottom Window From Left Side: 7/8\"Bottom Window From Bottom: 3/4\"Weight: 24#Material: White WoveFlap Opening: LongSeal: Self Seal (Shipped Open)This item is customizableDecoration: Screen Printing, Embroidery or Heat Transfer. 2124848 0.0100lbs 0.00 0.00 0.00
Super Forms
80 2027-07-25
500 EA
In Stock
customer review - by , October 10, 2025
5/ 5stars
I purchased these envelopes and the fit is perfect for our invoices. Easy to seal and a great price! Will definitely buy again!
customer review - by , August 8, 2025
5/ 5stars
Bought my first box in May 2022, 500 envelopes. I know some lift and seal envelopes can lose adhesion over time, but I just finished my first box (April 2025) and the last envelope sealed just fine. Hope my second box performs just as well.
customer review - by , June 6, 2025
5/ 5stars
Great envelopes
customer review - by , April 4, 2025
5/ 5stars
With Costs of supplies out of control, these have been a game changer! They are no different than the $60 check envelopes you will find at Office Depot, and that is with the business discount.
customer review - by , February 2, 2025
5/ 5stars
The ones that self adhere without a tape - or the best
customer review - by , February 2, 2025
4/ 5stars
I bought these as an experiment to see if i could cut spending on quickbooks brand envelopes. While the value was amazing, these aren't suited for that. The windows don't quite match up with quickbooks checks and the folds are difficult to get the checks inside.
customer review - by , September 9, 2024
5/ 5stars
Great price.. same envelopes staples sells for $99 for 500. No brainer
customer review - by , April 4, 2024
5/ 5stars
Envelopes are good quality.
customer review - by , January 1, 2024
5/ 5stars
Works as it should
customer review - by , January 1, 2024
1/ 5stars
This is the second time I ordered these envelopes. The first 2 boxes were perfect. The most current order I received, the self-sticking glue strip is in a much lower position so when you seal the envelope the more of the bottom edge sticks up and has to be taped down. Will try a different brand in the future.
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Super Forms E40338S - #9 Double Window Envelope (Self Seal), Price/EA

stars Rating 5 | 19 reviews
Brand Super Forms
Shop more from BMS
Shop by themes: Tax Forms And Supplies
SKU: BMS-E40338S
Unit Price: $0.16
Min.Order Price: $80.00 for 500 units
Imprint method:
Quantity:
In Stock
* This item must be ordered in multiples of 500.
*  Click "Add to Cart" to calculate shipping and delivery time.
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Product Description

Price is for EA.

Use this double window envelope for convenience when mailing checks. To confirm compatibility with your checks, order a free sample or call our customer service team.

Specifications:
Size: #9
Top Window Size: 7/8" x 3 7/8"
Top Window From Left Side: 3/8"
Top Window From Bottom: 2 1/2"
Bottom Window Size: 1" x 3 7/8
Bottom Window From Left Side: 7/8"
Bottom Window From Bottom: 3/4"
Weight: 24#
Material: White Wove
Flap Opening: Long
Seal: Self Seal (Shipped Open)

This item is customizable
Decoration: Screen Printing, Embroidery or Heat Transfer.

warning tips WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.

Specifications

Return Policy

Dated products, including tax forms, must be exchanged or returned unopened by December 1.

Note

This product is not eligible for coupon code discount, for we've been offering the best price in the market.
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Customer Reviews
5 out of 5
see all 19 reviews
5 stars
17
4 stars
1
3 stars
0
2 stars
0
1 stars
1
Write a Review
By Danielle C.
Date: October 22, 2025
I purchased these envelopes and the fit is perfect for our invoices. Easy to seal and a great price! Will definitely buy again!
Rating: 5 stars [5 of 5 Stars!]
By montaillou
Date: August 04, 2025
Bought my first box in May 2022, 500 envelopes. I know some lift and seal envelopes can lose adhesion over time, but I just finished my first box (April 2025) and the last envelope sealed just fine. Hope my second box performs just as well.
Rating: 5 stars [5 of 5 Stars!]
By greenhousemom
Date: June 23, 2025
Great envelopes
Rating: 5 stars [5 of 5 Stars!]
By Jo
Date: April 29, 2025
With Costs of supplies out of control, these have been a game changer! They are no different than the $60 check envelopes you will find at Office Depot, and that is with the business discount.
Rating: 5 stars [5 of 5 Stars!]
By A Customer
Date: February 20, 2025
The ones that self adhere without a tape - or the best
Rating: 5 stars [5 of 5 Stars!]
By Diane McElyea
Date: February 04, 2025
I bought these as an experiment to see if i could cut spending on quickbooks brand envelopes. While the value was amazing, these aren't suited for that. The windows don't quite match up with quickbooks checks and the folds are difficult to get the checks inside.
Rating: 4 stars [4 of 5 Stars!]
Items 1 - 6 of 18 reviews
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