Slim Frame Aluminum Picture Window 44x72" - Thermally Broken

Features Real Projects Specs FAQ

Availability

BackOrder

Warranty

5 Years

SKU

WFX-BLBL-4472-21609

Availability:BackOrder

Warranty:5 Years

SKU:WFX-BLBL-4472-21609

Unit Size:

44"x72"

Frame Material:

Aluminum

Visible Width:

1 5/16"

Finish from Inside:

Black

Finish from Outside:

Black

Glass Pane Type:

Triple Glass Pane

Glass Type:

Regular

Glass Spacer Bar:

Warm-Edge Black

Installation Anchors:

Included

Egress Compliant:

Price: $1,875.14 $2,083.49

(10% OFF for online orders)

Lead time:9 - 11 weeks

Need a Quote for Your Whole Project?

Custom-built for your exact opening
Choose interior and exterior colors
Select decorative glass and grid styles
Upgrade handle and hardware finishes
Customize configurations and opening styles

Need a Quote for Your Whole Project?

Custom-built for your exact opening
Choose interior and exterior colors
Select decorative glass and grid styles
Upgrade handle and hardware finishes
Customize configurations and opening styles

Remote Expert Installation Support Included*

*Every order over $10k includes three video consultations with our senior technicians to guide your contractor and help prevent costly installation mistakes.

Precision Kick-off
A video consultation for your contractor before the first window is set to ensure the entire project starts without costly mistakes.
On-Site Expert
Direct "SOS" calls to resolve any specific installation hurdles or technical questions instantly.
Final Inspection Support
We'll guide you on how to inspect the finished work, what to look for during handover, and how to verify or fix any installation details.

Complete Your Project

Real Homes, Real Comfort — See Our Windows in Action

Real project — white-framed glass railings on a roof deck

A Window You Feel Every Day

An Ultra-Slim Picture Window in Modern or Steel-Look Design

A picture window does one job: it frames the view. The less frame you see, the better it does that job. Slim Aero is designed around exactly this idea.

More glass, less frame
As a fixed window, it has no opening sash and no extra sash frame around the glass. The visible frame starts at just about 1.3 inches, about as slim as an aluminum window can get. The result is a single, large pane of glass with a crisp, almost invisible border that brings in more daylight and turns the view outside into a living piece of art.

More glass, less frame
As a fixed window, it has no opening sash and no extra sash frame around the glass. The visible frame starts at just about 1.3 inches, about as slim as an aluminum window can get. The result is a single, large pane of glass with a crisp, almost invisible border that brings in more daylight and turns the view outside into a living piece of art.
Clean and modern (Cubic)
Flat, minimal profiles around open glass create a frameless-looking picture window, ideal for contemporary living rooms, bedrooms, stairwells and accent walls.
Authentic steel look (Classic or Ferro)
Add divided-lite grids, and the picture window becomes a striking steel-look window. Classic offers the refined putty-line profile of traditional steel windows, while Ferro brings the bolder lines of early 20th-century industrial design. Solid, extruded grid bars on both sides of the glass make the divided lites look genuine, not like thin decorative strips.
Clean finishing
Concealed drainage keeps the frame clean, with no plastic caps. For fresh air in the same room, combine it with matching Tilt & Turn windows in the same style.

Why it stands out:

An ultra-slim fixed picture window that puts the view first, as a pure modern frame of glass or an authentic steel-look window with divided lites.

Ultra-slim Slim Aero fixed picture window in modern or steel-look design

Large Glass, Serious Energy Efficiency

A fixed picture window is the most energy-efficient window type: no moving parts, no opening joints, nothing for air to slip through. Slim Aero makes the most of that advantage.

Thermally broken frame
An advanced thermal break separates the inner and outer aluminum with insulating components, so outdoor heat and cold don't travel through the frame into the room. Even this slim profile stays comfortable to the touch, without cold spots or condensation.

Thermally broken frame
An advanced thermal break separates the inner and outer aluminum with insulating components, so outdoor heat and cold don't travel through the frame into the room. Even this slim profile stays comfortable to the touch, without cold spots or condensation.
Energy-efficient double or triple glass
Choose double- or triple-pane insulated glass with a Low-E coating and argon gas fill. The coating lets daylight through while reflecting heat, keeping warmth inside in winter and the summer sun's heat outside. A warm-edge spacer keeps the edges of the glass free from cold lines and condensation.

What you get:

A large, bright window that keeps the room warm in winter, cool in summer and comfortable right up to the glass, with lower heating and cooling bills.

Energy-efficient Slim Aero fixed picture window

Sealed for Life: No Drafts, No Noise

The glass of a Slim Aero picture window is set directly into the frame and sealed with durable EPDM gaskets around its full perimeter. Since nothing opens or moves, the seal never wears out. The window stays as tight years from now as it is on installation day.

No drafts, no leaks
The continuous perimeter seal keeps out drafts, dust and wind-driven rain, even in stormy weather.

No drafts, no leaks
The continuous perimeter seal keeps out drafts, dust and wind-driven rain, even in stormy weather.
A quieter room
The sealed frame and insulated glass dramatically reduce traffic, wind and street noise. With acoustic glazing, even a busy street becomes a calm background.
Security
There is no handle, no sash and no lock to force. With laminated or tempered safety glass, a fixed window is one of the most secure openings in the home.

What you feel every day:

A quiet, draft-free room behind a picture window that stays perfectly sealed for years.

Permanently sealed Slim Aero fixed picture window

A Picture Window Designed Around Your Architecture

A large picture window becomes a focal point both inside and on the façade. Slim Aero lets you shape it to match the architecture exactly.

Colors and grid patterns
Choose from the full RAL color range, from matte black and deep anthracite to soft neutrals or bold accent tones, and finish the inside and outside in different colors if you like. Grids can be finished to match the frame or in a contrasting color, in a pattern that suits the style of the home, from a single clean cross to a classic multi-lite layout.

Colors and grid patterns
Choose from the full RAL color range, from matte black and deep anthracite to soft neutrals or bold accent tones, and finish the inside and outside in different colors if you like. Grids can be finished to match the frame or in a contrasting color, in a pattern that suits the style of the home, from a single clean cross to a classic multi-lite layout.
A durable factory finish
The finish is applied and baked on at the factory, so it resists scratches, fading and daily wear and keeps its look for years.

The result:

An ultra-slim fixed picture window tailored with precision, from one clean sheet of glass to a graphic steel-look grid.

Custom-designed Slim Aero fixed picture window

Product Information. Slim Frame Aluminum Picture Window 44x72" - Thermally Broken

Unit Size44"×72"

Rough Opening (W × H)44¾" × 72¾"

Clear Opening (W × H)38⅞" × 68⅝"

Frame MaterialAluminum

Visible Width1 5/16"

Frame SystemSlim Aero (Cubic)

Finish from InsideBlack

Finish from OutsideBlack

Glass Pane TypeTriple Glass Pane

Glass TypeRegular

Glass Spacer BarWarm-Edge Black

Construction Depth3"

Thermal Coefficient U-FactorUw=0.1

Solar Heat Gain CoefficientSHGC=0.32

Warranty5-Year Warranty

Estimated Lead Time9 - 11 weeks

Glazing Specs5/32" Low-E | 15/32" Argon | 5/32" | 15/32" Argon | 5/32" Low-E

Egress CompliantNo

Window TypeSingle

Panel ConfigurationFixed

Weight152.3 lbs

Design Your Premium Entry Door

Explore the full Pirnar collection and customize every detail.

Discover how easy it is to create a truly custom premium entry door with an exceptional level of personalization. Explore the complete collection of entry door designs and customize virtually every detail — from dimensions, sidelights and transoms to glass options, finishes, handles and pulls, decorative elements, lighting, security locks, smart access and much more.

An intuitive visual configurator makes even the most highly customized entry door simple to design. In just a few minutes, you can explore countless combinations and create a premium entrance that perfectly reflects your home, architecture and personal style.

Create Your Door

Complete Your Architectural Vision

Explore our coordinated systems designed to bring consistent performance and style to every opening in your home.

Triple Casement Windows

Not Sure Where to Start or Afraid of a Costly Mistake?

Call The Measurement Service!

DiVetro measurement service: specialist with measuring tool and phone app

DiVetro's measurement service helps you get everything right before you order new windows, doors or custom glazing.

During the visit our specialist will:

Take precise on-site measurements of every opening
Check installation conditions and possible configurations
Recommend the best technical solutions and configurations
Align options with your home, design and budget

So you can make decisions with confidence, not guesswork.

Save time and avoid costly mistakes.

(646) 663-1291

FAQ

We offer a variety of windows including casement, sliding, and fixed windows. Each type is designed for different functions and aesthetic preferences, allowing you to find the perfect match for your home or office.

The right window size depends on the dimensions of your wall space and the desired aesthetic. It's important to measure the width and height of the opening where the window will fit. Our measurement service specialists can assist you with precise measurements to ensure a perfect fit.

Yes, many of our windows are customizable in terms of materials, colors, and finishes. You can also choose between various glazing options such as single, double, or triple glazing for better insulation and noise reduction.

Our windows are made from high-quality materials such as uPVC, aluminum, and wood, each offering different benefits in terms of durability, insulation, and maintenance.

Yes, our windows are designed with energy efficiency in mind. Many feature low-emissivity (Low-E) glass, thermal insulation, and advanced sealing technology to reduce heat loss and improve energy performance, helping to lower your utility bills.

For optimal performance and longevity, clean your windows regularly with mild soap and water. Avoid harsh chemicals and abrasive materials. Our windows are designed for easy maintenance with durable finishes that resist wear and weathering.

The lifespan of our windows depends on the material and how well they are maintained. Generally, uPVC windows last 30+ years, while aluminum windows can last up to 40 years. Wooden windows can last up to 20 years with proper care.

Yes, we provide warranties on all our windows. The duration and coverage depend on the product type, but most windows come with a 5-10 year warranty against manufacturing defects.

We recommend professional installation to ensure that your windows are installed correctly. Our certified installation teams are trained to install all window types with precision, ensuring a perfect fit and optimal performance.

While DIY installation is possible for some window types, we highly recommend professional installation to ensure safety, proper sealing, and long-lasting performance. Our team can guide you through the process or handle the installation for you.

Get a Free Estimate within 24 hours!

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2 Attach your blueprint or provide your measurements
3 Get your quote within 24 hours

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Slim Frame Aluminum Picture Window 44x72" - Thermally Broken

Need a Quote for Your Whole Project?

Need a Quote for Your Whole Project?

Remote Expert Installation Support Included*

A Window You Feel Every Day

An Ultra-Slim Picture Window in Modern or Steel-Look Design

An Ultra-Slim Picture Window in Modern or Steel-Look Design

Large Glass, Serious Energy Efficiency

Large Glass, Serious Energy Efficiency

Sealed for Life: No Drafts, No Noise

Sealed for Life: No Drafts, No Noise

A Picture Window Designed Around Your Architecture

A Picture Window Designed Around Your Architecture

Design Your Premium Entry Door

Complete Your Architectural Vision

Get a Free Estimate within 24 hours!