Click to expand Tap to zoom Metal Ducting Back Draft Shutter Save Liquid error (product-badge line 32): Computation results in '-Infinity'% £9.95 100mm - 4" - £9.95 125mm - 5" - £10.95 150mm - 6" - £12.95 200mm - 8" - £14.95 250mm - 10" - £24.95 315mm - 12" - £29.95 100mm - 4" 125mm - 5" 150mm - 6" 200mm - 8" 250mm - 10" 315mm - 12" Product Fan Size 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to Basket