Skip to product information
1 of 1

RKIN Anti-Scale Carbon Pre-Filter Alternative

RKIN Anti-Scale Carbon Pre-Filter Alternative

6 reviews
Regular price $39.95
Regular price Sale price $39.95
Sale Sold out
Shipping calculated at checkout.

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.

Carbon Pre-Filter alternative for Zero Installation Purifier or Flash Undersink Water System:
  • Prevents scale-buildup
  • Ensures the Reverse Osmosis membrane's long life span
  • Removes chlorine and other disinfection by-products

Use this carbon prefilter only when experiencing a short reverse osmosis membrane lifespan (under two years). 

NOTE: A brand new reverse osmosis membrane is also required when switching to the Anti-Scale bundle.

View full details


Customer Reviews
5.0 Based on 6 Reviews
5 ★
4 ★
3 ★
2 ★
1 ★
Write a Review Ask a Question

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
  • Water
  • suggestions
  • somewhere
  • clue
  • email
  • membrane
  • three
  • website
  • things
  • everything
Julia H.
United States United States
I recommend this product

Great Service, Great Product!

Everything you want from a product!

Griselda R.
United States United States
I recommend this product

So far so good

Product working as advertised

Dianne F.
United States United States
I recommend this product

Left wondering

Knowing I now have hard water, I ordered the special filter, assuming directions would come with it since I couldn't find any on the website. Nope. No clue if this is supposed to replace one of these others or goes somewhere else. And should I use up one of the pre-installed filters or swap it in right away...


Thank you very much for your valuable feedback. We are planning on making instructional videos to put on every alternative filter on our website. If you haven't been able to install the Anti-scale Carbon Prefilter, it takes the place of the standard Ft-92 Carbon filter pre-installed in the machine. The pre-filters are twist-on and off filters. To take the previous filter off just turn it clockwise. It may be easier to grip the filter as close to the filter head as possible. To install the new pre-filter, please twist the filter into the housing in a counter-clockwise direction. I hope this information helps. Please let us know if you have any other questions or concerns.

Casey W.
United States United States
I recommend this product

Great Customer Service

I had an issue with my countertop reverse osmosis system and spoke with Barbara G. about it. She was very helpful in sending an email on things to try. I worried what would come next after I told her I still had the issue when those suggestions did not resolve my problem. Instead of shoving me off to someone else in the company she cheerily sent out a new membrane free of charge! I am very pleased to say the least!

Lisa C.
United States United States
I recommend this product

Issue with filter

Great! Barbera was very nice and knowledgeable. Great customer service!