Larger pressure tank for RO water

[Steve]

Does anybody know where one can buy a larger (10 gallon or so) pressure tank to store RO water in? I would like to get a bigger one that has higher psi. I know they sell pressure tanks at the hardware stores, but the inlets on them are too big for standard RO tubing.
Thanks.

[AquaFx]

Steve,

Not only are the fittings the wrong size, but the materials of contruction are wrong. The RO/DI water will eat those tanks.

The only metal you should use is Stainless Steal. All else needs to be food grade plastics only.

I have seen copper pipes dissolve in 1 years time. All that copper went somewhere.

It is so easy to forget about this. We have had customers call going crazy out about high TDS in their "storage tanks" .

Only to find out they used a trash can (non food grade) and it was melting. The TDS was higher then their incoming water, and it was nasty things that had "dissolved" .