Fine-structured acrylic glass.

Mounts to Kaiser lighting units in connection with 5582 / 5592 Filter Holders. 2 pieces.

5583: For reflector size 50 x 21 cm (19.7 x 8.3 in.)
(Lighting Units 5556, 5557, 5558, 5588 and 5868)

5593: For reflector size 64 x 21 cm (25.2 x 8.3 in.)
(Lighting Units 5589, 5590, 5591, 5595, 5656)