Skylux 160° CE met koepel en metaalopstand met LM motor en windvang iWindow2 1000 x 1300 mm 100 x 130 Only for curb 16 20 Only for curb 16 20 Is this Skylux openable iDome with PVC curb 20 00 EP with blackout blind 0800 x 1800 mm the product you are looking for Double walled Acoustic value Rw