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BMS Super Forms 4356S 4up W 2 Alternate Double Window Envelopes Horizontal Self Seal P2124186BMS-4356S https://cdnimages.opentip.com/full/BMS/BMS-4356S.jpg Super Forms 4356S 4up W 2 Alternate Double Window Envelopes Horizontal Self Seal Use this envelope with our 4-up Horizontal W2 form - BW24DWNA.The security tint and cellophane windows ensure the privacy of information. Check your software for compatibility or order a free sample.Also available in Moisture Seal: 4356Specifications:Size: 5 5/8\" x 9\"Top Window Size: 3/4\" x 3 3/8\"Top Window From Left Side: 3/8\"Top Window From Bottom: 4 1/4\"Bottom Window Size: 7/8\" x 3 3/8\"Bottom Window From Left Side: 3/8\"Bottom Window From Bottom: 5/8\"Weight: 24#Material: White WoveInk Color: BlackInside Tint: BlueFlap Opening: LongSeal: Self Seal (Shipped Open)For the tax form, If you order before May, it will be for previous tax year (2025).If you order after May, it will be for the present tax year (2026). Please make a comment if you need previous year\'s form.This item is customizableDecoration: Screen Printing, Embroidery or Heat Transfer. 2124186 0.0220lbs 0.00 0.00 0.00
Super Forms
5.75 2027-03-17
25 EA
In Stock
customer review - by , November 11, 2025
5/ 5stars
These are good-quality envelopes. The only problem is, the peel-n-seal strips stick to your fingers (static electricity), and sticky goop comes off as well. Secure as can be, but a pain to deal with. Switching to gummy seals instead.
customer review - by , September 9, 2025
5/ 5stars
I have been through a lot of envelopes over the last 20 years. I have experienced my share of envelopes that have the windows off just enough to cover some of my wording or the logo on my checks. These have the windows in exactly the right space and the self-seal is a huge bonus. No more glue sticks or licking! Fast and easy to use, good quality material, and priced right.
customer review - by , June 6, 2025
5/ 5stars
I've purchased a number of times and they were great. As for the box we just purchased, the address window is about an 1/8" higher, just enough to show the written $ amount of the check, which is unacceptable. We are going to have to trash them and buy something else.
customer review - by , May 5, 2025
5/ 5stars
amazing quality, easy to use
customer review - by , April 4, 2025
5/ 5stars
works well
customer review - by , January 1, 2025
4/ 5stars
Little tight for standard business checks but works fine. Recommended.
customer review - by , January 1, 2025
5/ 5stars
Sometimes the windows can be a little off with other brands. These are the best I've found.
customer review - by , December 12, 2024
5/ 5stars
I still pay alot of bills by check and really like these envelopes.
customer review - by , November 11, 2024
5/ 5stars
These envelopes fit my QB checks perfectly. Love the peel off adhesive strip, very strong and no licking necessary.
customer review - by , October 10, 2024
5/ 5stars
Fit checks as advertised, without slop.Adhesive is good.

Super Forms 4356S - 4up W-2 Alternate Double Window Envelopes - Horizontal (Self Seal)

stars Rating 5 | 65 reviews
Brand Super Forms
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Shop by themes: Tax Forms And Supplies

SKU: BMS-4356S
Unit Price: $0.23
Min.Order Price: $5.75 for 25 units
Imprint method:
Quantity:
In Stock
* This item must be ordered in multiples of 25.
*  Click "Add to Cart" to calculate shipping and delivery time.
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Product Description

Use this envelope with our 4-up Horizontal W2 form - BW24DWNA.The security tint and cellophane windows ensure the privacy of information. Check your software for compatibility or order a free sample.

Also available in Moisture Seal: 4356

Specifications:
Size: 5 5/8" x 9"
Top Window Size: 3/4" x 3 3/8"
Top Window From Left Side: 3/8"
Top Window From Bottom: 4 1/4"
Bottom Window Size: 7/8" x 3 3/8"
Bottom Window From Left Side: 3/8"
Bottom Window From Bottom: 5/8"
Weight: 24#
Material: White Wove
Ink Color: Black
Inside Tint: Blue
Flap Opening: Long
Seal: Self Seal (Shipped Open)

For the tax form, If you order before May, it will be for previous tax year (2025).
If you order after May, it will be for the present tax year (2026). Please make a comment if you need previous year's form.



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.
Need more information?
Our staff are available to answer any questions you may have about this item


Customer Reviews
By Kelly Pooler
Date: November 22, 2025
These are good-quality envelopes. The only problem is, the peel-n-seal strips stick to your fingers (static electricity), and sticky goop comes off as well. Secure as can be, but a pain to deal with. Switching to gummy seals instead.
Rating: 5 stars [5 of 5 Stars!]
By B G
Date: September 14, 2025
I have been through a lot of envelopes over the last 20 years. I have experienced my share of envelopes that have the windows off just enough to cover some of my wording or the logo on my checks. These have the windows in exactly the right space and the self-seal is a huge bonus. No more glue sticks or licking! Fast and easy to use, good quality material, and priced right.
Rating: 5 stars [5 of 5 Stars!]
By Allen B.
Date: June 04, 2025
I've purchased a number of times and they were great. As for the box we just purchased, the address window is about an 1/8" higher, just enough to show the written $ amount of the check, which is unacceptable. We are going to have to trash them and buy something else.
Rating: 5 stars [5 of 5 Stars!]
By LaLaLaLaLaLaLaLaLaLaLaLaLaLaLa
Date: May 22, 2025
amazing quality, easy to use
Rating: 5 stars [5 of 5 Stars!]
By mountain machine
Date: April 30, 2025
works well
Rating: 5 stars [5 of 5 Stars!]
By ConsultCity International, LLC
Date: January 28, 2025
Little tight for standard business checks but works fine. Recommended.
Rating: 4 stars [4 of 5 Stars!]
Items 1 - 6 of 63 reviews
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