300,000+ Happy Customers
WaterDrop Undersink RO System Replacement Filters for WD-G2 Series
Bottled Water Was Never The Answer. Your Faucet Just Needed Backup. The WaterDrop Under Sink Filter connects straight to your existing faucet — no separate spout, no complicated install, just genuinely better-tasting water in under 3 minutes.Pick your model based on filtration capacity: WD-10UA (8,000 gal) / WD-15UA (16,000 gal) / WD-17UA (19,000 gal).
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In stock. Shipped within 1–3 business days.
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Industry Leadership Certifications
The Water People Actually Notice
Five-Stage Filtration That Actually Covers The Hard Stuff
- Advanced five-stage filtration removes 99% of lead, chlorine, taste and odor, sediment, fluoride, rust, arsenic, and other heavy metals
- Push-to-connect fittings mean install takes less than 3 minutes; twist-and-lock design swaps filters in 3 seconds, no tools required
- Filtration capacity of 8,000 / 16,000 / 19,000 gallons delivers safe filtered water all day
- Compact design fits kitchens, bathrooms, RVs, or small offices without eating your under-sink storage
Note: this expanded contaminant list (lead, fluoride, arsenic) reflects the system's full tested capability — see Block 9 for the complete breakdown.
Improved Filtration, Less Replacement Hassle
Improved filtration
At 0.5 micron accuracy, this system removes 99% of lead, chlorine, taste and odor, sediment, fluoride, rust, arsenic, and other heavy metals. You don't have to think twice about what's in your filtered water.
The system also retains minerals your body actually needs — potassium, calcium, sodium, magnesium. Fresh, healthy water, not stripped water.
Extended filter life:
8,000 / 16,000 / 19,000 gallons of capacity, enough to meet a tap water consumption of 22 gallons a day.
Less future replacement cost:
About 10¢ a day for the first year, dropping to 5¢ a day after — and your water quality keeps improving the whole time.
Five-Stage Filtration That Actually Covers The Hard Stuff
- Advanced five-stage filtration removes 99% of lead, chlorine, taste and odor, sediment, fluoride, rust, arsenic, and other heavy metals
- Push-to-connect fittings mean install takes less than 3 minutes; twist-and-lock design swaps filters in 3 seconds, no tools required
- Filtration capacity of 8,000 / 16,000 / 19,000 gallons delivers safe filtered water all day
- Compact design fits kitchens, bathrooms, RVs, or small offices without eating your under-sink storage
Note: this expanded contaminant list (lead, fluoride, arsenic) reflects the system's full tested capability — see Block 9 for the complete breakdown.
Improved Filtration, Less Replacement Hassle
Improved filtration
At 0.5 micron accuracy, this system removes 99% of lead, chlorine, taste and odor, sediment, fluoride, rust, arsenic, and other heavy metals. You don't have to think twice about what's in your filtered water.
The system also retains minerals your body actually needs — potassium, calcium, sodium, magnesium. Fresh, healthy water, not stripped water.
Extended filter life:
8,000 / 16,000 / 19,000 gallons of capacity, enough to meet a tap water consumption of 22 gallons a day.
Less future replacement cost:
About 10¢ a day for the first year, dropping to 5¢ a day after — and your water quality keeps improving the whole time.
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