Removal Capabilities: Woder WD-FRM-REP Cartridge for up to 95% of Fluoride Removal.
The WD-FRM-REP cartridge is the first stage replacement cartridge for the following dual stage systems:
Woder WD-D-FRM-G4-DC Water Filtration System.
Woder WD-D-FRM-G4-JG Water Filtration System.
Cartridge lifespan: 1 year under warranty.
Selective Filtration™
Our proprietary Selective Filtration™ technology removes 99.9% of contaminants while leaving in all essential minerals. Reverse Osmosis (RO) filters also remove 99.9% of contaminants, however, RO also remove ALL the minerals found in tap water – including minerals your body needs. RO systems can waste thousands of gallons of water annually while flushing out contaminants down the drain.
Fluoride Removal Replacement Cartridge – Gen4 (WD-FRM-REP)
If you’re already running one of our dual-stage fluoride removal systems, the WD-FRM-REP is the fluoride replacement filter cartridge built specifically to fit it. This is a cartridge-only order, meant for existing WD-D-FRM-G4-DC or WD-D-FRM-G4-JG owners who need a fresh cartridge rather than a new full system. It’s also commonly referred to as an frm cartridge for short, matching the model naming on the housing.
What’s Inside This Cartridge
This cartridge combines fluoride-reduction media with our standard Gen4 Advanced stage, the same dual-media approach that powers your original system. As a fluoride cartridge filter, it doesn’t change what your system does, it just refreshes the media inside so filtration performance stays where it started. Anyone running a fluoride removal cartridge from us should expect the same non-RO fluoride reduction they had on day one, without water waste or mineral stripping.
Knowing when to swap this fluoride removal replacement filter comes down to a few signs: a noticeable drop in flow rate, fluoride levels creeping back up if you’re testing periodically, or simply hitting the cartridge’s expected lifespan listed on the product page. Tracking your install date is the most reliable way to stay ahead of a worn-out cartridge rather than waiting for symptoms.
When and How to Replace It
Replacing it is a quick job either way. For the DC (under-sink) housing, it’s a simple unscrew-and-swap; for the JG (inline) version, it’s a push-to-connect cartridge change. Our install guides walk through the specific steps for each housing type, so you’re not guessing at the process. This filter is designed and packaged in the USA.
Frequently Asked Questions
Which Woder systems is this replacement cartridge compatible with?
It’s built for our WD-D-FRM-G4-DC (under-sink) and WD-D-FRM-G4-JG (inline) dual-stage fluoride removal systems, matching the media combination in both housing types.
How often should I replace the fluoride removal cartridge?
Watch for a drop in flow rate or check the expected lifespan listed on the product page. Tracking your install date is the most reliable way to stay ahead of performance decline.
How do I install the replacement cartridge?
It depends on your housing type: the DC version unscrews for a straightforward cartridge swap, while the JG version uses a push-to-connect cartridge change. Our install guides cover both processes step by step.
