C-310A Aluminum Basement Insert - Monarch Replacement with Expander / Adaptor
Columbia Series C310A Aluminum basement window replacement insert with insulated glass.
Maintenance Free, Energy Efficient, Easy, no tools required, 1 minute Installation.
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 buck frames.
Colors: Mill Aluminum finish (standard), or white or bronze painted finish available at additional charge
The Monarch was slightly smaller than Columbia and the Expander is added to the bottom of insert
The expander creates a 5/8 in. thick leg that fits into the Steel Buck Frame.
Note: Basement inserts with expanders are used with Steel Frames, Aluminum Frames do not need the adapter.
31 x 12-3/16 + Expander = 12-5/8
31 x 16-3/16 + Expander = 16-5/8
31 x 20-3/16 + Expander = 20-5/8
31 x 36-3/16 + Expander = 36-5/8 egress