: Purchasing individual bottles is one of the highest marked-up consumer products. If you consume RO water daily, it may be more cost-effective to invest in an under-sink system like those offered by Culligan to have a "near-free" source at home. What is reverse osmosis? Everything you need to know

Yes, you can easily buy reverse osmosis (RO) water through several common retail and service channels . While many consumers use in-home systems, RO water is a staple in the bottled water industry and is available for both individual and bulk purchase. Ways to Buy Reverse Osmosis Water

: Many grocery stores and health food shops host self-service kiosks (such as those from Glacier Water ) where you can bring your own jugs to fill with RO-filtered water at a lower cost than pre-bottled options.

: Many popular bottled water brands are actually purified using the RO process. For example, Dasani (Coca-Cola) uses reverse osmosis as part of its multi-step filtration before adding minerals back for taste. Smartwater also utilizes RO following a vapor distillation process.