Where's the best quality stuff sold?
Shaun
Respectfully, your question may be a little too general. There are basically 2 different gauges of 2" vacuum hoses (depending on brand, btw) which IMHO, are of very good quality.
One is the lighter weight Industrial hose; the other a very heavy weighted hose. If you are using it on one of the strongest Petro TM machines, you may require the heavy weighted style.
My point here is for clarification only.
best to all;
Ed Valentine