please help with RO/DI unit on ebay

[Dan Thrash]

i know this has been asked a million times, but please help me decide between these RO/DI units on ebay.

should i go with this 75 gal RO/DI for $139

or this 100 gpd RO/DI for $189

....or should i forget those two and go for this 100 gpd 6 Stage RO/DI for about $100?

i think it is really between the first two, i dont need the whole 6 stage one, unless you guys help me decide otherwise. i think many people have said a 75 gpd will last longer than a 100 gpd? is that true? thanks in advance!
-Dan

 

[Paintbug]

i have one of these
http://cgi.ebay.com/AQUA-AQUARIUM-1...442359113QQcategoryZ20684QQrdZ1QQcmdZViewItem

i have no complaints about it! 8-9 months and still getting 0 TDS! i liked it better over the others mainly because of the larger re-fillable DI unit.

 

[LivingTropicals]

I have this one -

http://cgi.ebay.com/AQUARIUM-2-110G...57937QQcategoryZ20756QQtcZphotoQQcmdZViewItem

Works great. I do recommend Filter Direct on ebay.

 

[charlesjordanjr]

I ordered the third one(with a water tank - $99.99+$32.50 shipping). I bought it because a lot of people use that here. Our water has 400-900 TDS in some areas. Not good at all. This thing brings it down to zero. I only heard glowing reviews of it. I will let you know about mine when I get it.

 

[KingSpade]

im getting this one
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7704096254&ssPageName=ADME:B:EF:US:1

 

[Paintbug]

<a href=showthread.php?s=&postid=6843391#post6843391 target=_blank>Originally posted</a> by KingSpade
im getting this one
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7704096254&ssPageName=ADME:B:EF:US:1

nevermind