RO Buddie Aquarium Filter Replacement Cartridge Set – 3 Pack (Sediment, Carbon, Color-Changing DI Resin) – Inline Cartridges for Clear, Safe Aquarium Water

I've been using the rodi buddy for a couple years now. It's perfect. It's small, easy to change filters, cheap compared to what you see on BRS. Take maybe 45min to fill a 5 gallon bucket. Always reads 0 on the TDS meter. When you see 1 on the TDS meter it is time to change the charcoal filter. I need to mention the TDS meter is sold separately but should be bought when purchasing the rodi buddy. Prestine water quality and simple functionality.

Have had this filter for quite a while. Once my second set of filter cartridges. Consistently give me 1 TDS output. Combine that with the price and it's hard to beat. Its only 50 gal per day, but I have 3 nano reef, so it's not a problem for my needs.

I used for filtering my saltwater tank water,operate as expected, this is 2nd time ordering from this vendor

I use these to make RODI water for my saltwater tanks. Luckily I live in an apartment building and dont pay the water bill making 5 gallons of water a week. Out of 5 gallons, Id say 25 gallons go down the drain. These filters are great and give me 0 TDS with a good main membrane. I sometimes just buy the entire new unit. For another 15 bucks when the sale runs you can get the entire water unit. The DI resin is the one I wish would last longer. But Im sure my area of where I live with water / temp. all make a difference.

Easy to install

Very happy, my replacement cartridge is here and in great condition

As described

This product is a lifesaver for improving water quality. We have saltwater aquarium with fish and live corals which are extremely sensitive to water quality. These filters have kept our aquarium healthy and happy by completely clearing the water of heavy metals, chlorine, and calcium. The filters work best if you slowly force water through them, so be patient. But I assure you that the quality is fantastic.