I have a Hanna Phosphate Tester. Tester works, viles are there, but for some reason I cannot find the cap for the viles, but I don't think thats a big deal. You'll need to buy the replacement reagents too. See how it works on the video here:
http://www.reefsupplies.ca/online-st...lorimeter.html
Sells for $55+ tax, you can have it for $20. Shoot me a text or email.
Kelly