Ohlectric 5 Inch White Ceiling Blank-Up Cover Plate- 2.75 Inch Apart Screw Holes, Mounting Screws Included-Covers 3-1/2 Inch Round/Octagon Electrical Boxes in Walls or Ceilings- (Pack of 4) OL-54977 : Amazon.co.uk: DIY
Round wall plate for 125mm ducting system
SUPERFINDINGS 18Pcs Wall Hole Cover Ceiling Cover Plate Flat Round Ceiling Cover Plate Circle Wallplate with 36pcs Screws to Cover Openings Above Ceilings or Walls : Amazon.co.uk: DIY & Tools