Our 2005 430GT Triton has the runners for a slide-out wire rack in the cupboard under the sink, however it was missing when we bought it. Anyone know if they are available for sale anywhere? or has anyone found a similar one that fits? Like the one in this photo I found elsewhere on here... We don't have the onboard water bottle, so a bit taller would be fine (max 26cm).

b&q used to sell something like, not been in kitchen section lately to know if still do.
if want a genuine one automotive leisure may help
leisure shop direct is another place would look

Excellent - that looks better than the original.

If only we had an IKEA nearer than 90 miles away… Ah well, worth a trip just for meatballs and lingonberry sauce 🤗