Woder Dual Stage Under Sink Water Filter, Up to 95% Fluoride Removal, Removes PFAS, Lead & Chlorine, Keeps Essential Minerals, WQA Certified, Easy DIY Install, US Made

You've switched to filtered water. But if your home runs on municipally treated water, fluoride is still getting through - and standard single-stage filters aren't designed to address it. The Woder WD-D-FRM-G4-DC was built for exactly this.The 1st stage targets fluoride, reducing it by up to 95%. The 2nd stage deploys Gen4 Advanced Selective Filtration, removing up to 99.9% of PFAS, lead, mercury, chromium-6, VOCs, THMs, and chlorine - while preserving calcium and magnesium that reverse osmosis strips away. No pump, no water waste, no storage tank. Includes dual-stage mounting head with stainless steel hoses, built-in shut-off valves, WD-FRM-L and WD-G4-L cartridges. Fits standard US 3/8" cold water supply with no countertop drilling. Built in the USA in accordance with US building code. Use with municipally treated cold water only - do not run hot, softened, or untreated well water through the system. Ensure the G4 cartridge is installed as the 2nd stage on the outlet side. For hard or high-sediment municipal water, consider the WD-20m-G4 with built-in 20-micron pre-sedimentation.WQA certified to NSF/ANSI 42 and NSF/ANSI 372. Every Woder cartridge is covered by a 1-year warranty - one cartridge set, one full year of pure, fluoride-reduced water, guaranteed. Lifespan may vary depending on local water conditions, usage patterns, or municipal infrastructure. Replace the mounting head every 3-4 years. Replace the 1st stage with WD-FRM-REP (B0C1H6V6R5) and 2nd stage with WD-G4-REP (B0C1H59KSQ) when due.If you experience no water flow, confirm the cartridge seal is fully removed and the supply valve is open. Cloudy water clearing within seconds is normal and dissipates after a few days. Sediment or unpleasant taste and odor typically point to a non-municipal, softened, or stagnant water source upstream. A TDS meter is not a reliable water quality measure - it detects all dissolved solids including the beneficial minerals Woder preserves.

• Up To 95% Fluoride Reduction, Dual-Stage Filtration: Municipally treated water with elevated fluoride levels may contribute to adverse health effects. The WD-D-FRM-G4-DC combines a dedicated fluoride removal cartridge with a Gen4 Advanced filter for up to 95% fluoride reduction plus full-spectrum contaminant removal in a single system.
• Removes PFAS, Lead, Heavy Metals & Chlorine: 2nd stage Gen4 Advanced Selective Filtration removes up to 99.9% of PFAS, lead, mercury, chromium-6, VOCs, THMs, PFCs, turbidity, and chlorine taste and odor. Claims tested by CLB Labs.
• Keeps Essential Minerals Other Filters Strip Out: Unlike reverse osmosis systems, Woder's Selective Filtration preserves beneficial calcium, magnesium, and potassium while removing harmful contaminants. No water waste, no pump, no storage tank required.
• WQA Certified & US Made: 2nd stage WD-G4-REP cartridge is WQA certified to NSF/ANSI 42 for chlorine taste and odor reduction and NSF/ANSI 372 for lead-free compliance. Designed and manufactured in the USA.
• Easy DIY Install: Includes dual-stage mounting head with stainless steel hoses, built-in shut-off valves, WD-FRM-L fluoride removal cartridge, WD-G4-L Advanced filtration cartridge, and installation guide. Connects to standard US 3/8" cold water supply in minutes. Built in the US in accordance with US building code.
• Two Replacement Cartridges, Long-Term Savings: Replace 1st stage with WD-FRM-L (Search "B0C1H6V6R5" on Amazon) and 2nd stage with WD-G4-L (Search "B0C1H59KSQ" on Amazon). Ultra high capacity design reduces long-term cost vs bottled water.
• 1-Year Cartridge Warranty, Backed By Woder Support: Every WD-FRM-L and WD-G4-L cartridge is fully covered by a 1-year warranty representing its rated lifespan and filtration capacity. One cartridge set, one full year of pure, fluoride-reduced water - guaranteed. Contact us directly for any quality concerns.