AquaticLife 10-Inch Cartridge Filters, RODI Reverse Osmosis Deionization Water Filter Replacement Cartridges Kit (Carbon Plus Chloramine)

as world class as NYC tap water is, the upstate watershed adds chloramine that noticeably impact flavor, particularly if you use tap to brew tea at home - because unlike chlorine, chloramine will not boil out of the water. so when our industry standard 3 stage under counter filter needed a fresh set of filters and O-rings, i tried this A.L. brand chloramine (red cap left) and particulate (no cap right) combined with a typical carbon block for metals and vocs (white cap center). after flushing the system for a while, then brewing a fresh batch of Nilgiris black leaf - we all agreed the flavor had significantly improved. i breed freshwater shrimp and host a nano fish tank, and use this filtered water to top off my tank without the need of using chloramine nullifying treatments. pro tip - lower the flow rate pressure on your filter system to maximize the effectiveness of chloramine removal.

Doing the job

Good deal, I made an insanely good deal out of these buy buying three along with the aquatic life 3 pack of pre-packed DI resin. https://www.amazon.com/dp/B018F4R460/ref=cm_cr_ryp_prd_ttl_sol_10

I put this carbon block in my RODI unit and used for about 2 months before my water started testing positive for chlorine. In the past I've been able to use individual blocks for almost a year. I don't know if I got a dud or not but I don't make that much RODI and was very disappointed with the longevity of the carbon block. I even pulled the filter housing off to make sure I had a good seal; I assumed it was user error. Not so, turns out it's just a poor quality carbon.Edit: I reached out to Aquaticlife and they were very helpful. They are sending a replacement and once I get it an use it for a while I'll revisit this review. As it stands, I bumped it from a 1 star to a 3 star due to great customer service. If the replacement block functions as expected, there will be yet another edit.

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Discovered a crack in the carbon unit after I installed it, carbo leaked out and ruined my pump and the entire batch of water had to be wasted.

Does the job