WHITE BLACKOUT PLEATED SKYLIGHT BLIND for VELUX GGL 4 or S06 or 606 - THERMAL
Velux windows only - The first three letters of the code will be for example GGL, GPL, GHL - this corresponds to the style and way the window opens. GGL / GHL / GPL Size 4 or S06 or 606. Pleated Fabric Skylight Blinds.