4000 Bay

The EcoTherm 4000 Bay replacement window series provides high-end elegance in a high-efficiency system. With its hand crafted insulated seat board and optional ST Glazing, this vinyl window series delivers outstanding thermal performance in a particularly vulnerable area of the home.

Better Windows for A Better World

4000 Bay

Standard Features

  • Sleek Slimline Sash Profile
  • Quad Weather-Stripping at Key Contact Points
  • Block and Tackle Balance System
  • Also available in Double Hung, Rolling, Picture Window and Hopper
  • Full Length Lift Handles
  • Locking Half Screen
  • Approved Forced Entry Locking System
  • Sash Tilt In for Easy Cleaning
  • Double Recessed Meeting Rail Locks
  • DP 50 Rated
  • Interlocking Sloped Sill
  • Dual Night Latches
  • All Welded Construction
  • 30 and 45 Degree Bay Window Style
  • 1" Insulated Seat Board
  • Red Oak or Birch Veneer Head and Seat Board
  • Screens on Operating Vents
  • 6 9/16" or 4 9/16" Jamb Depth
  • Hanging Cable System

Performance Options

  • ST Stimulus – Energy Star Approved Glazing Package
  • DOE-R5 Glazing Package
  • White, Beige and Bronze/White Colors
  • Cherry, Light and Dark Oak Simulated Woodgrain Interior
  • 14 Exterior Decorative Colors
  • Flat, Profile or SDL Grid Package
  • Custom Jamb Depths

© 2010 KASSON AND KELLER, INC. EcoTherm Window Systems, a quality product of Kasson and Keller, Inc. All rights reserved.