Louvre Air Ventilator Heavy Duty 5 Sizes x 200 mm Wide Wall Door Ventilation
Heavy Duty 200mm Wide Louvre Ventilators – Made in England. Size Number of Louvre Rows in the Vent. 200 x 200 mm 6 Louvres. 200 x 100 mm 2 Louvres. 200 x 75 mm 2 Louvres. 200 x 150 mm 4 Louvres. 200 x 250 mm 8 Louvres.