Adjustable height Thomas Dudley Turbo 88R. Flushing siphon for a toilet cistern. Comes with all its fittings.

Worth around £20, bought from Screwfix but after opening and doing some minor surgery on it, it was clear it wouldn't fit beside the plumbing in my cistern.

As new, except for a section of plastic edging cut out (see right side of photo), and the packaging is gone. Shouldn't affect its ability to flush.
Screwfix listing:
https://www.screwfix.com/p/thomas-dudley-ltd-adjustable-siphon-237mm/9756f
Manufacturer installation instructions and sizing:
https://www.thomasdudley.co.uk/plumbing/products/adjustable-turbo-88/

May be able to deliver in the Lisburn area if you have no transport.

New toilet siphon, Dudley Turbo 88 (Lambeg BT27 4)