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REDI2SET Ice Glass 21-1/4-in x 15-1/2-in Frameless Replacement Glass Block Window

Name: REDI2SET Ice Glass 21-1/4-in x 15-1/2-in Frameless Replacement Glass Block Window
Brand: REDI2SET
SKU: 5014561923
Price: 72.98 USD
Availability: InStock
Rating: 4.3 (47 reviews)

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4.3

Common Size (W x H): 22-in x 16-in

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Tue, Oct 27

30 available

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REDI2SET glass block windows are the ideal basement replacement window; they also make great windows for bathrooms, garages, kitchens and entryways
Made of 100% real glass, REDI2SET glass block windows are fully assembled for easy installation
Thick break-resistant glass enhances home security
Soft, textured ice glass pattern lets in light and affords a high degree of privacy
Provides improved energy efficiency over old single-pane basement windows
Efficient sound barrier reduces noise from outside and helps keep homes quiet
Assembled in the USA by 1 of America's oldest glass block companies
Non-vented option features clean, all-glass look
Rough openings should be 0.5-in to 2-in larger than the actual window size

General
Color/Finish Family	Clear	Frame Material	Frameless
Exterior Color/Finish	No Frame	Vent Type	Not vented
Interior Color/Finish	No Frame	Paintable	No
Series Name	Ice Glass	Design	Ice
Shape	Rectangle	Window Material	Glass
Project Type	Replacement	Joint Material	Silicone

Dimensions
Actual Height (Inches)	15.5	Jamb Depth Measurement	3-1/8-in
Actual Size (W x H)	21-1/4-in x 15-1/2-in	Rough Opening Height (Inches)	16
Actual Width (Inches)	21.25	Rough Opening Size (W x H)	22-in x 16-in
Common Size (W x H)	22-in x 16-in	Rough Opening Width (Inches)	22
Jamb Depth (Inches)	3.125	Weight (lbs.)	30

Features
Design Pressure (DP) Rating	0	Obscure Glass	Yes
High Altitude Rated	No	Solar Heat Gain Coefficient (SHGC)	.7
Lockable Vent	No	Vent Screen Included	No
Lowe's Exclusive	No

Certifications
CA Residents: Prop 65 Warning(s)	No	Hurricane Approved	No
ENERGY STAR Certified North/Central Zone	No	Meets CA Forced Entry Requirements	No
ENERGY STAR Certified Northern Zone	No	Miami Dade Approved	No
ENERGY STAR Certified South/Central Zone	No	Sound Transmission Control (STC) Rated	No
ENERGY STAR Certified Southern Zone	No	Texas Department of Insurance Approved	No
Florida Product Approved	No	U Value	.49

Warranty
Warranty	10-year limited

Miscellaneous
UNSPSC	30131500

Check out the Best Selling Glass Block Windows on Lowes.com

Review

4.3 out of 5

47 Reviews

84% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

The glass block window is generally well-received, with customers praising its quality, ease of installation, and the amount of natural light it provides while maintaining privacy. However, some customers have experienced issues with the alignment and sizing of the glass blocks, leading to an uneven or unappealing appearance. The product appears to be a suitable option for those seeking a glass block window that balances privacy and natural light, but buyers should inspect the item upon delivery to ensure it meets their expectations.

Customer review summary generated by AI, including incentivized reviews.

47 Customer Reviews

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Would Not Recommend

Top glass was damaged in transit was separated at a silicon joint

JimmyAugust 19, 2026
From Ice Glass 32-3_SLASH_4-in x 38-3_SLASH_4-in Frameless Glass Block Window

Was this Review Helpful ?

Efficient

Wuality

Big ANovember 1, 2025
From Ice Glass 21-1_SLASH_4-in x 34-3_SLASH_4-in Frameless Glass Block Window Verified Purchaser

Was this Review Helpful ?

Good quality

Would Recommend

My opening is fairly large so they delivered the window in two pieces. I wish they had an option for me to buy the glue to bond the two pieces together, but i bought an adhesive which worked fine.it is a beautiful high quality window.

Glass block windowOctober 26, 2025
From Ice Glass 34-3_SLASH_4-in x 29-in Frameless Glass Block Window Verified Purchaser

https://photos-us.bazaarvoice.com/photo/2/cGhvdG86bG93ZXM/1be8f8e0-cc94-5324-86c1-c77abc9dc74a

https://photos-us.bazaarvoice.com/photo/2/cGhvdG86bG93ZXM/1cc89a65-5419-5e8f-ac13-7f7cc16e2524

Was this Review Helpful ?

Should have been better

It was a glass block window. Whoever built the window wasn't very careful aligning the blocks. Each row is skewed at least an eighth of an inch, so it is about 1/4 off top to bottom. Now, i have to decide if I return it, cut it apart and fix it or just use it the way it is. If I do use it like that, I still have to buy some more silicon to fix all the gaps they left everywhere. maybe next time I will just buy the blocks. the pickup was fine though.

JeffSeptember 11, 2025
From Ice Glass 32-3_SLASH_4-in x 19-1_SLASH_4-in Frameless Glass Block Window Verified Purchaser

Was this Review Helpful ?

Ice Glass 36-3_SLASH

Would Recommend

everything

Frameless ReplaMay 18, 2025
From Ice Glass 36-3_SLASH_4-in x 17-1_SLASH_4-in Frameless Glass Block Window Verified Purchaser

Was this Review Helpful ?

Glass blocks are energy efficient and a sturdy

Would Recommend

Packing was good and the glass blocks arrived in excellent shape. It’s a solid product where you want daylight in a basement without the need to open and close.

Fix Anything GuyJuly 4, 2024
From Ice Glass 31-in x 15-1_SLASH_2-in Frameless Glass Block Window Verified Purchaser

Was this Review Helpful ?

good

Would Recommend

good quality, easy to install, looks nice

carolDecember 7, 2023
From Ice Glass 31-in x 11-1_SLASH_2-in Frameless Glass Block Window Verified Purchaser

Was this Review Helpful ?

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		Name	Current Item REDI2SETIce Glass 21-1/4-in x 15-1/2-in Frameless Replacement Glass Block Window
		Ratings	47
		Actual Size (W x H)	21-1/4-in x 15-1/2-in
		Frame Material	Frameless
		Shape	Rectangle
REDI2SETIce Glass 21-1/4-in x 11-1/2-in Frameless Replacement Dryer vent Glass Block Window	REDI2SETIce Glass 21-1/4-in x 15-1/2-in Frameless Replacement Dryer vent Glass Block Window	REDI2SETIce Glass 21-1/4-in x 13-1/2-in Frameless Replacement Dryer vent Glass Block Window	REDI2SETIce Glass 19-1/4-in x 15-1/2-in Frameless Replacement Dryer vent Glass Block Window	REDI2SETIce Glass 19-1/4-in x 13-1/2-in Frameless Replacement Dryer vent Glass Block Window	REDI2SETIce Glass 23-1/4-in x 15-1/2-in Frameless Replacement Dryer vent Glass Block Window	REDI2SETIce Glass 19-1/4-in x 17-1/4-in Frameless Replacement Dryer vent Glass Block Window	REDI2SETIce Glass 23-1/4-in x 13-1/2-in Frameless Replacement Dryer vent Glass Block Window	REDI2SETIce Glass 23-1/4-in x 17-1/4-in Frameless Replacement Dryer vent Glass Block Window
6	6	6	6	6	6	6	6	6
21-1/4-in x 11-1/2-in	21-1/4-in x 15-1/2-in	21-1/4-in x 13-1/2-in	19-1/4-in x 15-1/2-in	19-1/4-in x 13-1/2-in	23-1/4-in x 15-1/2-in	19-1/4-in x 17-1/4-in	23-1/4-in x 13-1/2-in	23-1/4-in x 17-1/4-in
Frameless	Frameless	Frameless	Frameless	Frameless	Frameless	Frameless	Frameless	Frameless
Rectangle	Rectangle	Rectangle	Rectangle	Rectangle	Rectangle	Rectangle	Rectangle	Rectangle