Sybon Refractometer FS:
 

I have a Sybon unit I got with a tank I bought, I cleaned it up and calibrated.
I have one already so this is FS for $25 no case tester only.
Looks like this >>https://encrypted-tbn0.gstatic.com/i...AW7GiTT9aNBbRH

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Nobody needs a good quality Sybon refractometer! :shocked!:

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Can't believe nobody has grabbed it yet at that price. I have one, and it is indeed a good refractometer, and a must have for any reef tank.

Thanks Walter, ya it works just fine I just don't need 2 of them.

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