110mm x 54mm Elbow Bend Female. Generally used for heat recovery and extraction fans.
10 x 180mm Worm Drive Clip
100mm (4") Brown Round Grille - Internal or External Use
100mm (4") Louvered Grille with Flyscreen
100mm (4") Round Plastic Ceiling Valve With Fixing Ring
100mm (4") Stainless Steel Ceiling/Wall Valve