Since you're in the UK, I would try these people:

Curtis Instruments (UK) Ltd.
Phone: 44-1604-62-97-55
Fax: 44-1604-62-98-76

Furon Ltd.
Phone: 44-1788-546333
Fax: 44-1788-569283

Hitachi Sales Europe in GERMANY
Phone: 49-211-52-9150
Fax: 49-211-52-83290

Bottoms up!

Kuan