400 profile 2

Integral pre-punched nailing fin speeds installation on new construction projects.

400 500 balance hung

Operable sash move smoothly with a constant force coil spring balance system that never needs adjustment.

400 profile

An integral pre-punched nailing fin speeds installation on new construction projects.



On Double Hung windows, sash slide easily up or down due to a constant force coil spring balance system.


Interlocking design of the meeting rail on Double Hung windows securely fastens sash together.


To assist with quick
installation, Series 400
windows are available
with wood or Quick
Trim™ cellular pvc jamb
extensions. Choose either 4-9/16″ or 6-9/16″


The U-channel spacer system, more efficient than conventional spacers, moderates outside air before it hits the inside sash.


Mini blinds are operated with one, easy-to use handle.


Optional internal, hermetically-sealed mini blinds add privacy and security, and help control light and solar heat gain. Located in side the sealed glass unit, the blinds will never need dusting and will not become damaged over time. The blinds raise, lower and tilt. Blinds are available in white only. Blinds are not available with grids. Size restrictions apply. Patio Doors with internal blinds do not meet Energy Star® requirements.