AquaticLife Mixed Bed Color Changing Bulk Deionization DI Resin Refill for Reverse Osmosis Water Filter for RO/DI System for Aquarium, 5 Liter | Loose mixed-bed deionization media for reusable RO/DI cartridges; changes color as the resin is exhausted

Been refilling my aquarium water cartridges with this. It works really well and have saved quite a bit already. Doesn't seem to last as long as the OeM media, but damn good for the cost to lose a few gallons between swaps.

I use it for washing my overpriced vehicles. Its really the only way to wash a black truck and not have to worry about water spots. I noticed a few people complain about the mylar bag having a hole in it. What these folks failed to mention is the resin was sealed in 5 other bags inside that bag. I personally have not seen any other place take the time to do that. As far as longevity of the product. Its probably the best resin or at least just as good as any top brand resin you will buy. Ive washed my very large truck and suv several times (complete wash) and still getting zero tds without a prefilter. For the quality and quantity its a good deal to me.

Works great it's a lot cheaper to refill than to order new filter get 3 refills for the price of a new filter

I was surprised that this comes triple wrapped, there is more than enough to do (2) 10-inch filters with plenty left over, I also got one of those resin packing kits, and so the resin seems to be doing it's job, as long as the resin is packed in tight, you won't be replacing it after 5 or 6 uses as I am using this to rinse down my trucks.

If you own an RODI unit, first make sure you have a canister on it to do refills. Second, use this DI media for replacement refills. Easy use, color changes to let you know when it needs replacing. WAY cheaper and convenient than purchasing a new cartridge each time. Just remember, save the filter pads inside your existing cartridge.

Item arrived as expected and very well packaged. Although it seems to me that the beads are a little finer than what I am used to with my regular brand. My TDS is back to zero but seems as if the resin is being used faster as well.

TDS after 5 minuets of run it was at 0 TDS will buy again

Often receive this product same day as ordered. Kinda expensive but quick delivery helps quell the pain of cost. I use it to treat well water for my fresh water aquariums. PPM here 400 + and this knocks it down to 0. I also use it to wash my solar panels and it leaves them spotless.

El paquete no me llegó por un problema en la aduana, después de un tiempo me reembolsaron el pago.

THIS IS A BIG BAG!! Will last a few years at a very good cost, compared to buying a new cylinder everytime! this is a no brainer! bag seals! thank you amazon.ca

Works great and is cheaper than buying a whole new unit each time the resin is used up.

I was surprised by the number of layers of vacuum packed layers this came in. It seems to do what it says it does. Pretty hard to handle/pour into the RO tube it goes in to but that is the nature of the product. Update: After using this product I have found that it does not last very long. After about 25 - 30 gallons the item begins to have a very strong odour. The colour change happens after abouut 20 - 25 gallons. This is in the Aquatic Life RO Buddie Four Stage Reverse Osmosis System. When I originally purchased it this was not intollerable. SInce then the price has more than doubled which makes this an extremely poor investment.

Great, came just in time and does what’s it’s supposed to do. Thanks.