Black Air Vent Grille 170mm x 170mm Fly Screen Wall Ventilation Cover Grid T40CZ
A - 137mm, B - 137mm, X - 170mm, Y - 170mm. Air Vent Grill Cover. Black Air Vent Grille. with Fitting Handle and Fly Screen. Designed To Cover Wall Or Ceiling Openings And Ducting Vents.