I will update this.
My filter setup is a 100 gallon per day RO filter plumbed into my kitchen faucet. This system is used for drinking water and configured as follows...
Stage one: NSF RATED 5 MICRON POLY SEDIMENT FILTER
Stage two: NSF RATED 1 MICRON POLY SEDIMENT FILTER
Stage three: CHLORAMINE MASTER NH2CL STAGE 2 CARBON BLOCK
Stage four: CHLORAMINE MASTER NH2CL STAGE 3 CARBON BLOCK
Stage five: 100 gal per day RO membrane
Storage tank
Stage six: IN-LINE 10” GAC SIX STAGE CARBON FILTER (used to polish water for taste)
Since we don't want to use RO water for our fresh water tanks, I am going to tap into the system between stage four and stage five. I have good pressure so there should be plenty to drive the drip system and still make RO water for drinking / cooking.
Jim from The Filter Guys was very helpful and answered all my questions. Below are the filters I purchased from them. (Note: I already had this configuration but the filters are from another vendor)
$3.00 - NSF RATED 5 MICRON POLY SEDIMENT FILTER -
http://thefilterguys.biz/filters.htm
$34.00 - CARBON BLOCK CHLORAMINE PACKAGE -
http://thefilterguys.biz/chloramine_filters.htm
I will be putting a drip on my 125 after I finish this one. Due to location of the tank, I will have to purchase a separate filter system for the 125. I will be getting their: THREE STAGE CHLORINE FILTRATION CARBON BLOCK DRIP SYSTEM -
http://www.thefilterguys.biz/ro_systems.htm