and in an emergency, they need a network that puts them first. that connects them to technology, to each other, and to other agencies. that's why at&t built firstnet with and for first responders the emergency response network authorized by congress. firstnet. because putting them first is our job. since you're heading off to school, i got you this brita. dad... i just got a zerowater. but we've always used brita. it's two stage-filter... doesn't compare to zerowater's 5-stage. this meter shows how much stuff, or dissolved solids, gets left behind. our tap water is 220. brita? 110... seriously? but zerowater- let me guess. zero? yup, that's how i know it is the purest-tasting water.