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OnliPure Edition Ion-Exchange Post Filter

OnliPure Edition Ion-Exchange Post Filter

32 reviews
Regular price $39.95
Regular price Sale price $39.95
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Replacement Cartridges Return Policy

Replacement filter cartridges with open or missing factory-sealed packaging cannot be returned. Please ensure you have the right cartridge before unsealing the product. Learn more about our return policy.

  • 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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Customer Reviews
4.3 Based on 32 Reviews
5 ★
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Don F.
United States United States
I recommend this product

Lightning Fast, service pure as my water !!

Absolutely perfect OnliPure Edition Ion-Exchange Post Filter Review
Jennifer M.
United States United States
I recommend this product

Cost of filters and machine

Kept having to replace expensive filters Finally got rid of the machine

Lauren B.
United States United States
I recommend this product

Good water/difficult maintenance

Best water I’ve ever had but changing filters can be difficult. Now there’s a leak in an area that I can’t access where the supply tube connects from the supply pitcher. I ordered a replacement gasket for the tube but it still leaks inside the unit from that area.


We are sorry to hear that you're having trouble with your water pitcher. It's great to hear that you enjoy the taste of the water it produces, and we understand that changing the filters can be a bit tricky. As for the leak, it sounds like you've already tried replacing the gasket for the supply tube, but it's still leaking from that area inside the unit. Have you tried contacting our customer support for assistance in accessing the area where the leak is occurring? We have some additional tips or solutions that you haven't tried yet.

Don F.
United States United States
I recommend this product

Awesome Customer Service

Have high level of minerals and solids ... filter removes them all in concert with my countertop RO unit.


Thanks for this review. The countertop RO unit is indeed one of the best filtration system there is. Stay safe!

Marcus M.
United States United States
I recommend this product

Auto renew order by mistake.

Double ordered post filters by mistake. Wanted to change delivery date and now have two extra filters.