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Pella® Defender Series™ Vinyl Sliding Window


Pella Defender Series sliding windows offer exceptional everyday performance and help protect your home against strong storms. Gliding open and closed along a roller system, these windows are a perfect option for areas that need easy operation. Pella Defender Series sliding windows are designed to work hard, so you don’t have to, with an exclusive vinyl formula and advanced glass technology.

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defender series sliding window in a kitchen

Defender Series Sliding Window Features

Why Vinyl?

  • Low-maintenance
  • Exceptional energy efficiency
  • Popular styles and options
  • Pella’s exclusive vinyl formula
  • Quality craftsmanship backed by Pella

Performance Enhancements

  • Performance tested vinyl formula provides excellent weathering and durability
  • Advanced glass technology provides noise reduction and blocks nearly 100% of UV rays
  • Impact and laminated glass options available
  • Window hardware automatically locks when the window is closed

50% off qualifying installations1,3or0% APR for 48 months2,3

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Inside Pella Defender Series

Pella Defender Series windows are created to endure harsh weather conditions. Our exclusive vinyl formula uses high-grade resins and additives for excellent weathering, durability and color retention. And we test samples of our materials and components of our products by placing them in conditions to mimic the intensity of Florida’s sun, coastal salt spray and above average humidity.

Cutaway of a defender series double-hung window

Options for Pella Defender Series Windows

Choosing Your Window

Frame Color

Create a signature look with solid- or dual-color frames. Made with our performance-tested, exclusive vinyl formula, you won’t have to paint, stain or refinish your windows.

cws frame color for hurricane shield in white


Styling Your Window


Automatically locking hardware comes standard on your single-hung windows. When you close the window, they automatically lock to help keep your home more secure.

White autolock


Grille Patterns

Choose between different grille applications to add design interest to your home.

traditional grilles on both sashes


Grille Profiles

3/4" contour grille

3/4" Contour

Window Enhancements


InView™ window screens let in 14% more light and are 8% more open for improved airflow compared to conventional screens.5


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Pella products are backed by some of the strongest warranties in the business.

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