C-400A-K Vinyl Basement Insert-Dual Pane Glass

The Columbia Series 400A vinyl basement window is an insert with insulated glass. Needs no tools to install--uses high tensile steel spring clips to secure the insert in the opening. Expander allows for use in most concrete basement walls with poured-in-place steel Kewanee buck frames. Available in white vinyl only.


Available in Standard Sizes*:

• 31" x 12-5/8"
• 31" x 16-5/8"
• 31" x 20-5/8"
• 31" x 36-5/8" (egress window)

*NOTE: Custom sizes are available--call to order
Information page: How to choose a window + removal/installation guide
Information video: Basement Window Replacement