We have this excellent piece of kit fitted on the roof of our motorhome. It was purchased and fitted in France as at the time it was not available in the UK and for 12v air con unit (sort of) it's fantastic and we can't remember how we ever managed without it during hot nights, well we can actually, we didn't sleep very much!!! Anyway just wondering if anyone out there also has one and has found somewhere in the UK to purchase a new filter or even purchase and fit same. Thanks.