well.. its a very basic model..The better units come with a pressure gauge and a tds
meter which at the very least i would say you need a tds
meter to tell you when your water is starting to get dirty..The pressure gauge also help let you know when your filters are getting dirty because your pressure drops..The unit you are looking at has neither of those so you have no idea what is going on with the purity of your water or how dirty your filters are .. So if you buy that for $50, then $22 or so for 3 filters , your at $72. RO
membrane $30-40 dollars =$110..and you dont even know yet if you need a new RO
membrane. which if you buy the unit on Craigslist you have no tds
meter on it so you wont know if you need a membrane for it or not.... That bulk reef supply link i posted has a 4 stage 75 GPD ro
unit on sale right now for 152.00 and has everything you would need..i wish it was on sale when i bought my used one of Craigslist.Ive spent $90 on my used one then bought the flush kit and pressure gauge for $30, new fittings $20 dollars (old ones were leaking) = $140 and i still need all 3 filters for 22 dollars..lol.. So if i had to do it over again ,just buy new. You never know what your getting used..
Ohh yaa How many GPD is the one for sale on CL
that you were interested in?
It didnt say in the add at all
I wouldnt waste my time with anything under 75 GPD