Challenge is Argos own brand. When they sell a product they have to provide spares for up to 6 years. There are 2 websites you can use to get spares for these. Www.argosspares.co.uk tel 08445570320. Also easyspares.co.uk tel 017333362413.
I also have a JP -5600 and haven't been able to get filter. I have contacted Argos head office tel 01908 690333 ask for customer service. Explain issue and they will give you a reference number and go back to store.
Paul F
July 2012
did you find out i have a challenge jp-5600 and i need a filter too but can not find one anywhere ?
anne-marie king
June 2012
Automatic Answer
While you wait for answers, we may have found some information which could help you.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix steam irons.