The cassette snaps into brackets, stopping light from behind the roller. Light blocking side channels snap into the cassette stopping side light. Bottom rail with “Fin Seal” insulation fits into bottom channel. Brush strip cleans shade. Insulating strips seal mounting surfaces for 100% blackout. Sold as complete units.
Specifications:
Cassette Height: 3"
Cassette Width: 2 3/8"
Cassette Depth: 2 3/4"
Side Channel Width: Adjustable 1 1/2" to 2"
Side Channel Depth: 1/2"
Bottom Channel Width: 1 1/4"
All components are powder coated rustproof aluminum with white high gloss finish.