dutchy101 In theory yes, in as much as the ionic capture resin in the Zero filter is ‘good’ for ~18 grams of captured ions, according to ZeroWater (I guess they used some average expected molecular weight for the dissolved ions, or maybe everything is in CaCO3 equivalents?), and if some ions are captured somewhere else the resin will last longer.
Whether a Brita filter actually strips much out in terms of ions (rather than dissolved gases like chlorine, or heavy metals like lead) remains to be seen… my “normal” drinking water filter (ceramic + charcoal) doesn’t seem to do much in that respect, although it’s very effective at eliminating bad smell and taste (mainly from chlorine).