do these work as RO/DI units?

i was at costco the other day and saw these.

http://www.costco.com/Browse/Product.aspx?Prodid=11258080&search=watts&Mo=18&cm_re=1_en-_-Top_Left_Nav-_-Top_search〈=en-US&Nr=P_CatalogName:BC&Sp=S&N=4001611&whse=BC&Dx=mode+matchallpartial&Ntk=Text_Search&Dr=P_CatalogName:BC&Ne=4000000&D=watts&Ntt=watts&No=12&Ntx=mode+matchallpartial&s=1&topnav=&Nty=1&s=1

http://www.costco.com/Browse/Product.aspx?Prodid=10034720&search=watts&Mo=18&cm_re=1_en-_-Top_Left_Nav-_-Top_search〈=en-US&Nr=P_CatalogName:BC&Sp=S&N=4001611&whse=BC&Dx=mode+matchallpartial&Ntk=Text_Search&Dr=P_CatalogName:BC&Ne=4000000&D=watts&Ntt=watts&No=13&Ntx=mode+matchallpartial&s=1&topnav=&Nty=1&s=1

would these do a good job filtering water to use in a saltwater tank?

 

http://www.thefilterguys.biz/

Send them an email and they'll set you up with a unit that is designed for this hobby. Probably for less than $149.00 depending on your needs.;D

 

The two at Costco are drinking water systems not RO/DI. The first is about the same one I started with years ago, also from Costco, but ended up costing me much more to make a reef quality system out of it than what you can buy a good one for today.
The second one is not really zero waste, it sends the waste back into your hot water tank using a booster pump and is limited to about 15-18 GPD max.

Let me toos this 3Reef sponsor into the mix.
SpectraPure Customer Appreciation SALE! 20% - 50% off

$149 for a reef quality system with a dual inline TDS meter, inline pressure gauge, custom mixed DI resin for reef applications, a tested and treated 90 GPD RO membrane, a capillary tube flow restrictor and much more. Tough to beat.

 

+1 on the spectrapure. just bought it about a month ago and couldnt be happier!

 

wow that's a GREAT price on the SpectraPure units. Just picked up a MaxCap RO/DI 180gpd for less than I paid for my non-metered generic 100gpd unit at my shop...

wow.

 

It is a great deal, to give you an idea, my first 90 GPD MaxCap, 5 years ago was $389.

 

ok thanks for the help
i will look into that.

 

I love my AirWaterIce unit 8)