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Waterdrop WHF21-SH 2-Stage Whole House Water Filter System, NSF/ANSI 372
✅ In stock
⭐ Lowest price we've tracked
C
Grade
Analysis Confidence
95%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 27, 2026 1:49 PM · Prices & availability subject to change
Is This a Good Price on Amazon?
🙂 Fair Price- 🙂Verdict: Fair Price. Small discount vs history. Consider waiting for a better drop.
- 💰The current price is 21% below what this product typically costs — a notable saving over its usual going rate.
- 🏷️A 17% cut from the official retail price adds further appeal.
- 📉Our analysis places this at the most competitive price point we have ever tracked for this product — an exceptional moment to buy.
- ➡️Pricing has held fairly steady, with no strong push in either direction.
How We Scored This Deal
Price Competitiveness
9.8/28
Recent Value
0/22
Market Standing
18.65/20
Deal Strength
20/20
Momentum
4/10
📝 Product Overview
🏪 Sold by
Waterdrop Filtration Tech
📦 Fulfillment
Fulfilled by Amazon
🚚 Shipping
Free Shipping
Product Details
✓𝐔𝐩𝐠𝐫𝐚𝐝𝐞𝐝 𝟕-𝐒𝐭𝐚𝐠𝐞 𝐅𝐢𝐥𝐭𝐫𝐚𝐭𝐢𝐨𝐧: Specially engineered for well water, this whole house water filter system helps reduce heavy metals, chlorine, and other impurities while improving water taste and odor. Its advanced filtration media include an upgraded scale inhibitor, PP cotton, KDF, coconut shell activated carbon, and more, helping reduce scale buildup and provide cleaner water throughout your home.
✓𝐒𝐞𝐝𝐢𝐦𝐞𝐧𝐭 & 𝐒𝐜𝐚𝐥𝐞 𝐑𝐞𝐝𝐮𝐜𝐭𝐢𝐨𝐧: This whole house water filtration system helps reduce sediment and scale buildup in water softeners, water heaters, washing machines, dishwashers, and other water-using appliances, supporting reliable performance and a longer service life.
✓𝐔𝐩 𝐭𝐨 𝟖𝟎,𝟎𝟎𝟎 𝐆𝐚𝐥𝐥𝐨𝐧𝐬 𝐨𝐫 𝟏𝟐 𝐌𝐨𝐧𝐭𝐡𝐬: Each filter lasts 6 to 12 months and provides up to 80,000 gallons of filtration. Requiring no electricity and producing no wastewater, the system offers an efficient solution that may cost as little as $0.55 per day. Data is based on a 12-month filter lifespan; actual lifespan may vary depending on local water conditions and usage.
✓𝐍𝐒𝐅/𝐀𝐍𝐒𝐈 𝟑𝟕𝟐 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐞𝐝: Made with lead-free and BPA-free materials, this system is certified by IAPMO R&T to NSF/ANSI 372 for lead-free compliance, providing added confidence for your family’s everyday water use.
✓𝐌𝐞𝐞𝐭𝐬 𝐍𝐒𝐅/𝐀𝐍𝐒𝐈 𝟒𝟐, 𝟓𝟑 & 𝟑𝟕𝟐 𝐒𝐭𝐚𝐧𝐝𝐚𝐫𝐝𝐬: The first-stage filter meets NSF/ANSI 42 requirements and complies with applicable FDA, TSCA, RoHS, and REACH requirements. The second-stage filter is certified by CSA to NSF/ANSI 42, NSF/ANSI/CAN 372, and NSF/ANSI 53 standards for the reduction of contaminants including lead, mercury, VOCs, and 99.98% PFAS.
✓𝐓𝐞𝐬𝐭𝐞𝐝 𝐓𝐡𝐫𝐨𝐮𝐠𝐡 𝟏𝟎𝟎,𝟎𝟎𝟎 𝐖𝐚𝐭𝐞𝐫 𝐇𝐚𝐦𝐦𝐞𝐫 𝐂𝐲𝐜𝐥𝐞𝐬: Engineered with a double-layer sealing ring, the system has passed 100,000 water hammer cycles and low-temperature testing down to -4℉, helping minimize leaks and deliver dependable performance for your entire household.
⚙️ Specifications
Brand
Waterdrop
Special Feature
Whole House Water Filter System
Product Dimensions
14.37"L x 7.48"W x 15.55"H
Material
NSF/ANSI Approved Components
Capacity
50000 gallons
Included Components
2-Stage Filter System, 2 Filter Cartridges, Wrench, Expansion Screws
Installation Type
Whole House Water Tank
Purification Method
Activated Carbon
Power Source
No Power Source Needed
Item Weight
17.6 pounds
Model Name
WD-WHF21-SH
