"EASI54" wrote:

I recently purchased a used bow thruster without the aluminum tubing
and have priced them thru Volvo Penta and Vestus and they aren't
cheap.
I was wondering if anyone out there had the same situation and if
they
were successful obtaining a tube from another source? We're talking
over 9" (250mm).
Also, could I get away with fiberglass instead of aluminum?

I laid mine up using a piece of 8" PVC pipe as a mold.

Had 6 layers of 34 OZ triaxial glass and epoxy for final tube.

Would NEVER consider metal for this application.

Have fun.

Lew