RKIN OnliPure Post Filter For Zero Installation Purifier

OnliPure Edition Ion-Exchange Post Filter

21 reviews
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  • Polishing OnliPure Post Filter reduces any leftover contaminants after the Reverse Osmosis process to zero TDS.
  • Measure and confirm from your home with a simple TDS meter.
  • Size 2.5"x10".
  • Build-in quick connect fittings for 1/4" tubing.

Note: If converting from AlcaPure Edition to OnliPure Edition by using this post-filter, then larger attachment clips are required.

Customer Reviews
4.6 Based on 21 Reviews
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Lauren B.
United States United States
I recommend this product
Filter difficult to install

If you don’t have very good strength in your fingers, this won’t work for you. I’ve had the unit for a year now. It’s still very difficult to disconnect the old filter. It takes finesse and super strength! The quality of the water is still excellent, however….once you finally get the filter installed!

Jonathan B.
United States United States
I recommend this product
Great Products with Attentive Service

I get a lot of use out of this filter. Couldn't install an under-the-sink RO unit at my apartment, but the OnliPure filter is well worth the cash and counterspace. Bought a TDS tester out of curiosity, and its reads 0ppm when I tested water from it.

Marcus M.
United States United States
I recommend this product
Onlipure annual filter replacement

Ordered replacement filters today for my counter top unit. Barbara at RKIN made ordering fast and easy. Her knowledge of my unit and the filters I needed was helpful and she had answers to all my questions. Outstanding customer service.

Onur P.
United States United States
I recommend this product

0 TDS is real with this post filter. Barbara provides incredible outstanding service, on the phone, via email literally minutes after you sent her an email.

Lauren B.
United States United States
I recommend this product
Post filter replacement/water quality

The filter replacement is going much smoother than at first. It’s easier to to detach. As always the water quality and taste is outstanding.

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