Calor gas twin bottle adaptor y splitter weco propane adapter converter flogas

next to clear out is all my old calor 4.5kg gear.
i used to have the large nut on all of my gas stuff then used adapters for the various bottles rather than keep changing regulators.
haven't used for a long while and some i bought and never used.
would advise changing the seals where applicable.
some need seals like the POL adapter.
the blue adjustable one doesn't adjust so would need looking at.

Just the described object in the picture.
Postage is 2-5 days via Other Courier.