Solid Rectangle is a hand cast single glazed aluminium porthole kit, suitable for 35 and 44mm doors only.
The Solid Rectangle is 240 x 290mm int 335 x 385mm ext. With a chunky look the Solid Rectangle stands off the face of the door by 50mm.
Bolting to itself this kit has 4 counter-board fixings visible on the internal face.
This product is single glazed and cannot be fire rated.