Carolina Custom Cages Chlorhexidine Solution 2%; 3 refills make 1 gallon each of working solution Each of these 3 refills will produce 1 gallon of working strength chlorhexidine; just fill gallon jug 75% full with distilled water, add the Chlorhexidine Solution 2% and finish filling jug up to measuring line on the neck of the gallon jug. This is the best cleaner for your reptiles habitat; used and recommended by exotic animal vets for cleaning your cages and other habitat items. We love this anti-bacterial, anti-fungal cleaner because it is easy to use and non-toxic to our reptiles. Basically, you spray and wipe and then if your reptile licks where you just cleaned, it won't hurt them. Great for daily maintenance cleaning as well as monthly cleaning from top to bottom. See also our Carolina Custom Cages listing for Chlorhexidine Solution 2%; 32 oz. Sprayer, plus 2 refills. Carolina Custom Cages is a division of Carolina Designer Dragons, Inc.