[PSUBS-MAILIST] Potentiometer

[Alan via Personal_Submersibles]

Hi, 
does anyone know of a reasonably priced potentiometer that is 
IP68 ( submersible in water to 1.5 metres for 1/2 an hour) or better
or of a housing or other product I could adapt to make a potentiometer
waterproof. 25-100k ohm would work for me, but I would be interested in
anything.
I bought an underwater rotary switch from blue robotics that is nearly
but not quite able to be adapted for the potentiometer.
Thanks, Alan