Series 450 Windows

Double Hung, 2 and 3-Lite Sliders and Picture Windows

Our top of the line Series 450 windows combine meticulous craftsmanship with the strength and maintenance-free beauty of a rigid vinyl construction to deliver exceptional value and lasting durability.

Ellison New Construction Brochure
Ellison Series 450 Product Photo
Product Close-Up View
Series 450 Double Hung Window
Feature Sheet
Product Close-Up View
Series 451 Slider Window
Feature Sheet

Standard Features

  • Beautiful, true brick-mould exterior frame perimeter
  • Both sashes operate and tilt in for easy cleaning
  • Integrated J-channel and nail fin simplify installation (Series 460 available without J-channel)
  • Insulated glass panels with optimum thermal air space featuring warm-edge spacer system
  • Block & Tackle balance system
  • Continuous head and sill on twins and triples
  • Half screen standard*
  • Custom sizes available
  • DP 35 rating (available with DP 50 option)
  • Limited Lifetime Warranty

Series 451 Slider Window Specific Features:

  • Available in 2-lite and 3-lite configurations
  • Jamb depth 3.868″

* Screens are not meant to restrain a child from falling through an open window.

Vinyl Color Options




Painted Color Options


Brick Red



Dark Chocolate


Hunter Green



Note: Device/Monitor screen settings may affect color shown. Please refer to actual window sample when selecting colors. Laminates and exterior painted options available on select products, if they are not shown above they are not available on this product. Interior and exterior laminates available on white window only. Only use mild, water based household cleaner on painted product and rinse immediately with water. See full cleaning instructions for details. Grid offering limited to 5/8” contoured or SDL on exterior painted windows.

Grid Types

5/8-Inch Flat Grid

3/4-Inch Flat Grid

5/8-Inch Contoured Grid

1-Inch Contoured Grid

1-1/8-Inch Simulated Divided Lite (SDL) Grid

Grid Patterns




Perimeter Prairie


Glass Options

  • Low-E Glass
  • Low-E Glass and argon gas for additional efficiency
  • Ultra Low-E Glass and argon gas
  • Obscure, tempered or double-strength glass

Additional Options

  • Brass and brushed nickel locks
  • Dual, push button night vents (Double Hung Only)
  • Window Opening Control Device (WOCD) to prevent falling from a window (factory applied)
  • Factory mulling of twins, triples and architectural shapes
  • Paintable or stainable wood jamb extensions (4-9/16 inch and 6-9/16 inch)
  • Charcoal aluminum mesh screen
  • Custom sizes available

Manufacturing Story

Our windows and sliding doors are recognized for their high-quality craftsmanship, innovative engineering and close attention to detail. Learn more about the process used to make them.

New Construction Windows

Ellison’s new construction product video provides a detailed look at all of our new construction window offerings.

The Ellison Warranty

Every Ellison window and patio door is backed by a limited lifetime warranty on vinyl, glass and all working parts. Each product is individually registered with a product identification number, making ordering replacement parts throughout the warranty period easy and efficient.

View Warranty & Support Details

Ellison Product Care

Ellison windows and doors are designed for easy care and maintenance. Click the button below to download Ellison’s window and door care and maintenance guide

Download Guide

Energy Savings

With multiple glass options to increase energy efficiency, there is a glass package to fit any climate need and budget. Visit the Glass section of our site to learn more about available options and energy efficiency.

View Energy Saving Options