Links

Sources/suppliers

http://www.bes.ltd.uk - large stock of plumbing fittings esp. corrugated stainless LPG hose. Online ordering.
http://www.lesker.com - online distributor of vacuum systems and components. Online ordering.
http://stores.ebay.co.uk/RM-Catalysts - source of stainless-steel flexible exhaust couplings
http://www.island-scientific.co.uk - supplier of vacuum pumps, gauges and accessories.

http://www.rtftechnologies.org - I take my hat of to this guy! He builds fusion reactors in his dorm....