100mm External Grey Louvered Grille Vent *4" Spigot*
Stainless Steel 100mm 4" Non-Return Flap Extract Vent. Perfect for cooker hoods
100mm External White Louvered Grille Vent *4" Spigot*
100mm (4") White Round Grille - Internal or External Use
Stainless Steel 100mm 4" Gravity Flap Vent *Perfect for intermittent fans*
100mm Terracotta Louvered Grille Vent *4" Spigot*
100mm 4" Aluminium Flexible Ducting *5 metre length*
100mm Round Threaded Hose Connector Male - Connect Flexi Duct To Rigid
100mm (4") Stainless Steel Ceiling/Wall Valve
100mm Black Louvered Grille Vent *4" Spigot*
4" 100mm Round Plastic Solid Ducting *350mm length*
100mm External Brown Louvered Grill Vent *4" Spigot*
125mm to 100mm (5" to 4") White Plastic Ducting Reducer
100mm 4" High Rise Ventilator WHITE
100mm (4") Round Plastic Ceiling Valve With Fixing Ring
125mm to 100mm Round Offset Reducer
100mm (4") Brown Round Grille - Internal or External Use
100mm 4" Solid Ducting 90 Degree Elbow (VKC300)
100mm 4" High Rise Ventilator BEIGE
100mm Beige Louvered Grille Vent *4" Spigot*
