Oh! Thanks for that...... you wouldnt happen to know if you can still get the same parts for the Ro-system from anywhere else??? In the cold weather the screw in housing (not the clear plastic filter holder) cracked and I need a replacement!
Lots of companies sell such things.
You could probably collect in person if you live near one (your area isn't on your profile). There is a list of companies elsewhere on the internet but the site owner doesn't allow links to be posted to other forums.
Maybe give Omnipole a ring on 0208 405 6782 . There are others but that's the only number I have as they are local to me (south London).
Hope I haven't broken a forum rule in posting their number. Can't remember all the rules and regs.