Bevelled Edge Diffuser Neck Adaptor

8" – 225 x 225, 8" – 300 x 300, 8" – 450 x 450, 10" – 300 x 300, 10" – 375 x 375, 10" – 450 x 450, 12" – 300 x 300, 12" – 375 x 375, 14" – 375 x 375