I think ours is a big birky. It holds about 2.5 gallons. We kept it on the counter by the sink in our first house and I loved that, because I could fill it with the spray house from the sink. In our last house they was not space, so it say on a small cabinet against a wall, just past the kitchen. Water bottles lived there too. Now we have RO but will probably use the berky either in the basement or garage, which every we end up using more this summer. I never found any deals. I think you can scrub the filters when they start to get slow, before you have to replace them.
loving my dh and our littles (dd ~ 11 yrs, ds ~ 9 yrs, ds ~ 7 yrs, dd ~ 5 yrs and baby brother ~ 20 mo)