tupperware aquasafe water bottle set, 1 litre, set of 4, multicolor: amazon in: home \u0026 kitchen. get filtered water with this 34oz brita hard sided bottle for. next . looking at the options from sawyer, i see that there are 3 offerings (excluding the mini): squeeze, 3 way, water bottle filter (same as my all-black old . pouring-water-over-gravel-in-coffee-filter. using grass . purificup natural water purifier over a nalgene water bottle.