Most of my near term hiking where I could need to filter water is in farming country. It's often difficult to be certain the natural areas of the midwest aren't below a corn field.

So I want to be able to filter chemicals too. I have a Versa Flow and I'm aware they have an inline charcoal screw on option but I figured I would see what else is out there before I buy it.

What other options do I have to remove pesticides and the like from water that isn't going to add a pound to my load?