204mm x 60mm to 100mm Horizontal Adaptor

204mm x 60mm to 100mm Rectangular to Round Adapter

204mm x 60mm 150mm Double Airbrick Adaptor

Manrose White 90° Flat to round ducting adaptor (Dia)100mm (W)110mm

Kair Airbrick Adapter 310x29mm to 234x29mm

System 220x90 Double Airbrick Adapter With Fitted Grilles - Black

234x29mm Double Airbrick Adapter

110mm x 54mm to 204mm x 60mm Rectangular White Airbrick Adaptor

Kair Equal T-Piece Adaptor 110mm x 54mm for Rectangular Plastic Ducting

Compression Straight Adaptor - 22mm X 3/4"

System 225 Airbrick Adapter With Airbrick Grille

Manrose White Flat to round ducting adaptor (Dia)100mm (W)110mm

System 225 Double Airbrick Adapter With Grille (DUCVKC712G)

220mm x 90mm Megaduct to 204mm x 60mm Adapter Large Flat Channel Ducting

Kair Airbrick Adapter 234x29mm to 234x29mm

Kair 45 Degree Horizontal Elbow Bend 204mm x 60mm - 8 x 2 inch Rectangular Plastic Ducting Adaptor

204mm x 60mm to 125mm Horizontal Adaptor

System 204 Double Airbrick Adapter Passive Vents

Kair 45 Degree Horizontal Elbow Bend 110mm x 54mm - 4 x 2 inch Rectangular Plastic Ducting Adaptor