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Model # NU2-3222

Internet # 100660080

31 in. x 21.25 in. NailUp2 Wave Pattern Glass Block Window

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$104.00 /each



Model # NU2-3222

Internet # 100660080

The 1st Glass Block Vinyl Frame Replacement Window. Four different ways to install into a masonry/brick or wood opening. Glass Block Windows are fabricated with adhesive by Robot. Better than mortar or conventional silicone. Nailing Flange Kit included.

  • Replaceable screen with frame on outside
  • Real glass block
  • Glass in vent not plastic
  • Nail from the inside, or the outside, with mortar or silicone, can be installed at any temperature when using nailing flange and sealing with silicone
  • Can be installed at any temperature when using nailing flange and sealing with silicone

Info & Guides

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Grid Width (in.) 
Jamb Depth (in.) 
Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Rough Opening Height 
21.75 in 
Rough Opening Width 
31.5 in 
Design Pattern 
Exterior Color/Finish Family 
Hardware Included,Privacy Glass,Venting 
Frame Material 
Frame Material 
Glazing Type 
Grid Pattern 
Hardware Color/Finish Family 
Interior Color/Finish Family 
Lock Type 
Cam Action 
Number of Locks 
Product Weight (lb.) 
56 lb 
Solar Heat Gain Coefficient 
Window Features 
Window Type 
Glass Block 
Window Use Type 
New Construction,Replacement 
Warranty / Certifications
Energy Star Qualified 
Not Qualified 
Manufacturer Warranty 
limited lifetime 


Rated 4.4 out of 5 by 23 reviewers.
Rated 5.0 out of 5.0 by wonderful windows Good window. simple and easy install. Top quality in my opinion. Very heavy for its size. My wife is happy with these replacement windows, and so am I. We will order two more for the other basement windows shortly! May 15, 2012
Rated 4.0 out of 5.0 by The product was easy to handle for a DIY person, installed in less than 2 hrs, you need 2 people to install put together well, looks great, and the price delivered to your home is 30% less expensive than a comparable product. March 13, 2012
Rated 5.0 out of 5.0 by NailUp2 Glass Block Window I purchased three of these windows online and had them installed by a contractor. According to my contractor they were easy to install and had a great finish. I would reccomend this product to all. January 25, 2011
Rated 2.0 out of 5.0 by Tried to save a few bucks I purchased 3 of these to replace my old basement windows. Unfortunately all three were were racked by almost 1/2 inch so they would not lay flat. Installed them anyway, they let in lots of light and look good as long as you dont look too close. Probably should have gotten the cornings instead. August 4, 2010
Rated 1.0 out of 5.0 by Poor quality I got one of thease windows for my contractor to install then he quit me so the window sat around for 60 days or so. Just went to install and found on the bottom edge vinel had a melyed spot on bottom right site inside, left side bottom was bulged out due to to much silicone. Bottom right side glass block had a large chip (about the size of a silver dollar. This was all coverd up by the little cardboard try it came in. As for installation paper work what a joke. If you buy one check it very closely. Better yet don't buy!! September 15, 2010
Rated 5.0 out of 5.0 by Great Value! Purchased for my bathroom. Was everything that I wanted. Great window for the price. Love the vent w/screen. May 2, 2012
Rated 5.0 out of 5.0 by Better than I expected Based off of the other reviews we bought three of these windows to replace the old, dated, metal framed ones in our basement. My husband and father in law put all three of these plus one regular window in, in one day. They said they were a breeze! They went right in! The frames of the old windows were cemented into the walls so we had to leave the old frame and cement these windows in, which was kinda what they planned for anyways. We also noticed, compared to the old windows, that these are much more energy efficient. The old windows you could walk by and feel the heat coming in from the outside. These you feel nothing. They are fantastic! We've even put the little window to good use feeding in the hose for the compressor as they are doing some framing as well. Father in Law loved the ease of the installation and my sister in law is now going to be ordering some for her house as well. Great, great buy! Would recommend 100%. July 8, 2013
Rated 4.0 out of 5.0 by Good (standard) glass blockwindow, no instructions I purchased these windows over other similar windows based on vendor's claims it offered more flexible installation options (nail or silicone, outside or inside). While it does come with optional nailing strips, that's about the only feature included. The window is pretty much standard (no complaints), but the installation instructions are non-existent. The instructions are a sticker on the window that says "can be installed with nailing strips or silicone" and that's about it. I've installed a couple of dozen windows in my house to date and I still would have appreciated a page or two of installation instructions/hints/suggestions. February 8, 2010
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