For optimal health it's recommended to drink at least eight 8 ounce glasses of water per day.
So to drink enough water to be healthy and to equal the amount of glasses of water per day you would need to drink at least 2 of the 32 oz bottles of water per day.
Drinking two 32 ounce bottles of water per day would equal the amount of water it would take to drink 8 of those 8 ounce glasses of water.
Of course you can get by by only drinking 32 ounces of water per day so one bottle of water per day of that 32 ounce bottle per day would be better than drinking no water at all.
As long as you drink other healthy drinks throughout the day just drinking one or two of those 32 oz bottles of water per day would be enough.