
⚠️ Delayed Shipment Notification: this product will ship on or before Feb 17th, 2021.
RKIN Ion Exchange post-filter:
- 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.
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This product does a great job. I called customer service twice regarding ordering replacement filters and how to change them. Excellent customer service both times. They answer the phone right away and don’t put you on hold. I recommend the Alcapure!

GREAT Customer Service

Yves F was a great help in getting my filter replaced, I greatly appreciate the help.

Yves F, Helped me a lot regarding the Post filters, I was facing a problem with the TDS level, she sent me new post-filters free of cost that has to install in the machine. RKIN customer support is the best Thanks Yves. F

Yves was very helpful today. I experienced a premature expiration of my 4th stage filter on a new ZIP system. He was quick to troubleshoot, provide different options, and ultimately sent a complementary 4th stage filter. I am new to Rkin, but their product seems well-made, and their support is phenomenal (thanks Yves), and I expect to be a long term customer.