Stainless steel double glazed porthole kit, can be made to fit any thickness door or wall.
SS Sym M porthole kits are 300mm I.D 390mm O.D
Non fire rated and 1/2hr fire rated kits are made to suit 44mm thick doors as standard.
1hr fire rated kits are made to suit 54mm thick doors as standard.
Please leave comments at checkout if you need differing thicknesses.
For kits over 70mm thick and wall units please contact us for pricing.
Bespoke shapes, sizes and specification are easily accommodated.
Please note 1hr fire rated kits can only use the thru bolt fixing.