based on this manual:
http://www.gdainfo.com/Resource1049853HJDUFOS023X/Owners%20Manuals/Dehumifier/GDH_DEH16Emanual.pdf
It looks like its a Dimplex item, sold by Homebase.
try here:
https://store.gdcgroup.co.uk/catalogue/dimplex/spare_parts/dehumidifiers/index.htm
You may need to contact Dimplex as it looks to be out of stock, alternatively there may be other online retailers with stock available. Check model numbers
Google is your friend
XXX, November 2015
