Vacuum Cleaners Discussions

Do Miele HEPA Filters sold in the UK, or the rest of Europe,  fit Miele vacuums sold in the US?  Specifically the SF-AH50 HEPA filters for the S5 series canister vacs?

Examples US and UK…

In the US:

http://www.amazon.com/Miele-AH-50-Filter-Vacuum-Cleaners/dp/B000HA1Z98

USD 52.95 - This is the price posted everywhere by online retailers, and in all independen vac dealers I’ve seen.

In the UK, at a London ‘Oxford Street’ retailer:

http://www.johnlewis.com/230510075/Product.aspx  

GBP 19.95 – Appears to be the MSRP in UK, also listed on Miele’s UK websites.

Conversion to US equivalent price  of UK:   £19.95 x 1.538 (today’s rate) = $30.68, i.e. difference of US $ 22.00 per filter.

I’m asking because I may have an upcoming trip to London, which usually included a weekend day exploring, and if so may grap a few of these and save some USDs in the process. Assuming they won’t raise any concerns at customs upon return, “Are you bringing in any fruits, vegetables, live plants, or alcohol?” Why no officer, just some HEPA filters for my German-made vacuum cleaner.