Simply Koi and More Koi

hi all i am looking for a Dechlorinator for water changes i have heard that there is a fibre glass one that lasts for about five years with out needing any thing doing to it about £100 not sure of the name but its green ?
has any one got one for sale here

I am not sure which one you mean but you can also get water purifiers which just go in-line with the water supply and the cartridges are fairly cheap to replace and some work a long while as well.

That reminds me it must nearly be time for me to change mine