Cooling jackets for water cooled tube anodes in industrial RF equipment, supplied to suit the tube type they are ordered against.
A water cooled tube is only as good as the jacket around it. Scale, corrosion and a poor seal turn a cooling circuit into the reason the tube fails early.

Replacing a corroded jacket during a scheduled tube change
Building a spare cooling assembly for a continuous duty generator
Restoring a water cooled transmitter stage to service
Matching a jacket to an FD911S or similar water cooled tube
Yes. Tell us the tube type the jacket has to fit and we will quote the jacket on its own.
The tube type it serves, the overall dimensions and a photograph of the connection ends.
Send the requirement with the enquiry and we will tell you what can be included for that jacket.
Yes. Ordering both together is the normal way to keep the cooling parts and the tube matched.
Send the numbers exactly as they are printed on your equipment. Price, availability and the data we hold come back by email.