You need a simple carbon filter.

I suggest - as I always do - that you install an industry standard big blue cartridge holder, then you can use whatever filter you would like.

This provides the most value, and the most flexibility.

Wow, thanks--I didn't know there was an industry standard for this! Do multiple manufacturers make filters and holders for this to the same standard?

Yes, there are different manufacturers of filter housings, and of filters. The "big blue" is a common residential housing and then there are different filter makers that can go in it. It's 4" x 10" or 4"x 20".

Follow the links in my original post. The Big Blue with the valve on top is the best way to go though. You can get it in 10" and 20" with filters in both of those lengths. The longer filters are generally more capacity or greater gpm.

I have a 20" big blue and an Aries 20" KDF 55 - Carbon filter. It will do 3 gpm which is slightly more than a kitchen faucet (2 - 2.5 gpm). I also have it plumbed to the ice maker and cold in the bathroom sink.

You probably don't need a KDF 55. A standard GAC would probably do just fine.

If your water supplier uses chloramine instead of chlorine buy, a catalytic carbon filter cartridge.

That sounds great! I'm attaching this to a single 0.5 gpm cold water despenser, so it sounds like a 4" x 10" will do the trick. Thanks again--you saved me from probably making a mistake on this one. :)