Purewell® - K Series - Fluoride Removal Filter Elements
Guaranteed Safe Checkout

✅ [Perfect Compatibility] This filter element is designed for connecting with any Purewell Replacement Carbon Filters and Berk*y carbon filter. Can NOT be used separately.
✅ [Efficient, Reliable Filtration] Combining unique material with high-quality activated carbon, this filter reduces up to 86.9% fluoride in water, making your water harmless and safe for drinking.
Note: This filter is NOT designed for removing TDS, salt or pigment in water.
✅ [Best Quality Materials] Food-grade fluoride reducer and granular activated carbon. BPA-free housing, provides clean and safe water for your household at all times.
✅ [Cost-Effective Option] Producing up to 1,000 gallons of filtered water per pair, this filter saves you up to 7,580 bottles of bottled water. It is a sustainable and safe option.
✅ [Seamless Installation] Once you have connected these filters with our black filters, you can rest assured of real-time delivery of clean and healthy filtered water.
How often to replace filter: approx 12 months
How soon to arrange order: within 1-2 working days
Certification: American Native NSF Certification
Purewell provides a 30-days return policy, which means you have 30 days after receiving your item to request a return with reasonable reason.
Buyer should pay the express cost for returning, if customer want to change another size, color, system or don’t like it, within 7 days.
To be eligible for a return, your item must be in the same condition that you received it, didn't fill chambers with water, unopened or unused, with tags, and in its original packaging. Or Purewell has the right to refuse return & refund.
You’ll also need to provide the order number or receipt or proof of the purchase.
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method within 3-7 business day. Please remember it will take some time for your bank or credit card company to process and post the refund too.
Frequently Bought Together


Authoritative NSF Certified
We are proud to announce that Gravity-fed water filter system, replacement filters have been tested & certified by
NSF/ANSI 42 & 372.

Rigorous NSF Tested
Purewell NSF certification affirms our commitmentto ensuring the highest quality standards for ourgravity water filtration systems & water filters, recognized by the global leader in certification services.

Independent Lab Tested
Products are also tested by our authoritative & independent organizations, such as TUV, RoHS, CE, FDA, SGS etc.

Affordable Choice
Lifespan approx 2,000 gallons per pair of BO series water filter.

Designed for K Series
It's not only compatible with Purewell K Series system but also can be connected with other brands' carbon filter, such as Berkey (Travel, Big, Royal), ProOne, Alexapure, Doulton.

Easy Installation
You can install the filters easily within 3 seconds.
Filter Series |
K Series |
Temperature |
41℉-100℉ / 4℃-38℃ |
Water Sources |
Tap, Stream, Rain, River, Well etc |
Lifespan |
1,000 gallons (per pair) |