I bought a 100 GPD off of Ebay. I had to upgrade the DI part as the one I got with the unit didnt do too well. I removed it and put a full size DI cartridge from BuckEye Field Supply (RC Sponsor) and I have 100 GPD of ZERO TDS water. My reef couldnt be happier!
In my opinion, as long as you are getting a unit that takes the standard 10" filters, in a year, when you are replacing filters, it wont matter what brand you bought because you will be searching for filters from other vendors anyway. Just my $.02
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"You can't depend on your eyes when your imagination is out of focus." - Mark Twain
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