Single hung 4 1/8" Spectra

All PVC frame and sash with thermally welded corners.

Triple weather-strips located on the sash for maximum air and water tightness.

Integrated interlocking lock system for better forced entry security.

3/4" wood and 1/2" drywall returns built into the frame.

Sealed glazing total thickness 11/16" (18 mm).

Options

Wood or vinyl covered wood interior extension.

Exterior brickmould with nailing flange and integrated space to receive exterior siding.

Internal georgian aluminium grills.

R4.2 LowE and argon gas filled thermo-panes.

Performances