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Mar-Flex STONEWELL Egress Well Granite 75" x 49.5" x 64.5"
Mar-flex WW-44440 Egress Window Well Speckled Sandstone 75" Wide Built-In Steps
back view of the Mar-flex WW-44440 Egress Window Well Speckled Sandstone 75" Wide Built-In Steps
Mar-Flex STONEWELL Egress Well Granite 75" x 49.5" x 64.5"
Mar-flex WW-44440 Egress Window Well Speckled Sandstone 75" Wide Built-In Steps
back view of the Mar-flex WW-44440 Egress Window Well Speckled Sandstone 75" Wide Built-In Steps

Mar-Flex STONEWELL Egress Well 75" x 49.5" x 64.5" - Maintenance Free, code compliant with built in steps

by Mar-Flex
SKU WW-44430
Availability:
in stock, ready to be shipped
Availability:
in stock, ready to be shipped
$1,999.00 - $1,999.00
$1,999.00
$1,999.00 - $1,999.00
$1,999.00

+ FREE SHIPPING

Color: Speckled Granite
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Description

Transform Your Garage or Basement Safety

Enhance your below-grade garage or workshop with a durable, maintenance-free egress window well engineered for lasting safety and clean, professional appearance. Its one-piece polyethylene construction features built-in steps for quick emergency exit and a realistic stone texture that complements commercial or residential exteriors.

The wide design fits large below-grade windows, resists soil pressure, and won’t rust, dent, or corrode—delivering decades of reliable performance, improved ventilation, and added property value.

The wide design fits large basement windows, resists soil pressure, and won’t rust, dent, or corrode—providing decades of reliable performance and improved property value.

 Placeholder Image

What's Included

  • One (1) one-piece polyethylene egress window well
  • Pre-formed mounting flanges for installation

(Mounting hardware kit and cover sold separately.)
  • Integrated step system for emergency exit
  • Built-in stone-textured exterior finish

Key Benefits

Reliable Emergency Egress – Built-in steps provide a safe and easy exit that meets current building code requirements.

Durable One-Piece Construction – Heavy-duty polyethylene design resists rust, dents, and corrosion.

Dual-Wall Strength – Withstands soil pressure and shifting for long-lasting structural integrity.

Easy, Leak-Free Installation – Seamless construction eliminates weak joints and reduces installation time.

Realistic Stone Texture – Offers the look of natural stone without the cost, weight, or maintenance.

Improved Natural Light – Wide design and light-colored interior help brighten basement spaces.

Low Maintenance – No painting or rust treatment needed; built to perform for decades.

Optional Accessories – Compatible with protective polycarbonate covers for debris and weather control.

Code-Compliant and USA-Made – Meets egress safety standards and supports domestic manufacturing.

 Placeholder Image

Maintenance Free

Built for decades of worry-free use, this window well requires minimal upkeep:

  • No painting, sealing, or rust treatment needed.
  • Simply rinse with water to remove dirt or debris as needed.
  • Optional polycarbonate cover (sold separately) helps prevent leaves, pests, and rain buildup.
  • UV-resistant surface prevents fading and cracking, even in harsh weather conditions.
 Placeholder Image

Easy Installation

Installation

The window well arrives fully assembled as a one-piece unit, ready for professional installation. The seamless design eliminates weak points, leaks, and complex assembly steps.

For best results and to maintain warranty coverage:

  • Use the WW-44180 installation hardware kit (sold separately).
  • Follow the included installation guide for correct mounting and drainage setup.
  • Professional installation is recommended to ensure compliance with building codes and optimal long-term performance.
 Placeholder Image

Durawell Specs

Overall Width 75 inches
Top Projection 49.5 inches
Total Height 64.5 inches
Inside Width 66 inches
Inside Bottom Projection 34 inches
Window Compatibility Up to 5 foot windows
Construction Durable polyethylene with dual-wall design
Surface Texture Realistic simulated rock finish
Assembly One-piece unit, no assembly required
Installation Hardware WW-44180 kit sold separately
Compliance Meets building codes for below-grade living spaces
Certification Build America Buy America Act (BABAA) certified
Optional Accessories Polycarbonate cover available
Placeholder Image

Mar-Flex Durawell Installation Manual

Looking for detailed information on installing the Mar-Flex Durawell? Then check out this installation manual below.

 PDF Installation Instructions
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Returns

30-Days Easy Returns
You have a 30-day period from the date of receipt to inform us of your intent to return the product. The returned item must be in its original condition, including its packaging and all the accompanying components.

Upon receipt and verification of the return, a refund will be processed to the card used for the purchase. This refund will be the remaining balance after deducting the restocking fee, return and original shipping costs, and transaction fee.

No Returns on Custom or made-to-order products.

Read our complete Refund Policy here.

Downloads

Installation Instructions

California Residents Only — Warning: Cancer and Reproductive Harm — www.P65Warnings.ca.gov

Description

Transform Your Garage or Basement Safety

Enhance your below-grade garage or workshop with a durable, maintenance-free egress window well engineered for lasting safety and clean, professional appearance. Its one-piece polyethylene construction features built-in steps for quick emergency exit and a realistic stone texture that complements commercial or residential exteriors.

The wide design fits large below-grade windows, resists soil pressure, and won’t rust, dent, or corrode—delivering decades of reliable performance, improved ventilation, and added property value.

The wide design fits large basement windows, resists soil pressure, and won’t rust, dent, or corrode—providing decades of reliable performance and improved property value.

 Placeholder Image

What's Included

  • One (1) one-piece polyethylene egress window well
  • Pre-formed mounting flanges for installation

(Mounting hardware kit and cover sold separately.)
  • Integrated step system for emergency exit
  • Built-in stone-textured exterior finish

Key Benefits

Reliable Emergency Egress – Built-in steps provide a safe and easy exit that meets current building code requirements.

Durable One-Piece Construction – Heavy-duty polyethylene design resists rust, dents, and corrosion.

Dual-Wall Strength – Withstands soil pressure and shifting for long-lasting structural integrity.

Easy, Leak-Free Installation – Seamless construction eliminates weak joints and reduces installation time.

Realistic Stone Texture – Offers the look of natural stone without the cost, weight, or maintenance.

Improved Natural Light – Wide design and light-colored interior help brighten basement spaces.

Low Maintenance – No painting or rust treatment needed; built to perform for decades.

Optional Accessories – Compatible with protective polycarbonate covers for debris and weather control.

Code-Compliant and USA-Made – Meets egress safety standards and supports domestic manufacturing.

 Placeholder Image

Maintenance Free

Built for decades of worry-free use, this window well requires minimal upkeep:

  • No painting, sealing, or rust treatment needed.
  • Simply rinse with water to remove dirt or debris as needed.
  • Optional polycarbonate cover (sold separately) helps prevent leaves, pests, and rain buildup.
  • UV-resistant surface prevents fading and cracking, even in harsh weather conditions.
 Placeholder Image

Easy Installation

Installation

The window well arrives fully assembled as a one-piece unit, ready for professional installation. The seamless design eliminates weak points, leaks, and complex assembly steps.

For best results and to maintain warranty coverage:

  • Use the WW-44180 installation hardware kit (sold separately).
  • Follow the included installation guide for correct mounting and drainage setup.
  • Professional installation is recommended to ensure compliance with building codes and optimal long-term performance.
 Placeholder Image

Durawell Specs

Overall Width 75 inches
Top Projection 49.5 inches
Total Height 64.5 inches
Inside Width 66 inches
Inside Bottom Projection 34 inches
Window Compatibility Up to 5 foot windows
Construction Durable polyethylene with dual-wall design
Surface Texture Realistic simulated rock finish
Assembly One-piece unit, no assembly required
Installation Hardware WW-44180 kit sold separately
Compliance Meets building codes for below-grade living spaces
Certification Build America Buy America Act (BABAA) certified
Optional Accessories Polycarbonate cover available
Placeholder Image

Mar-Flex Durawell Installation Manual

Looking for detailed information on installing the Mar-Flex Durawell? Then check out this installation manual below.

 PDF Installation Instructions
Reviews

Customer Reviews

Be the first to write a review
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Returns

30-Days Easy Returns
You have a 30-day period from the date of receipt to inform us of your intent to return the product. The returned item must be in its original condition, including its packaging and all the accompanying components.

Upon receipt and verification of the return, a refund will be processed to the card used for the purchase. This refund will be the remaining balance after deducting the restocking fee, return and original shipping costs, and transaction fee.

No Returns on Custom or made-to-order products.

Read our complete Refund Policy here.