- [Efficient filtration] The impressive 10” x 4.5” PP filter and GAC filter combination achieve a 5-stage filtration, effectively reducing large particles and sediments larger than 5 microns. The whole house water filter also reduces chlorine, lead, benzene, mercury, peculiar smell, sand, rust, and more.
- [Longer lifespan] The GAC filter is expected to be changed every six months, while the PP filter is due for a change every 3-6 months. Waterdrop’s house water filtration system features a longer lifespan, therefore saving your potential replacement cost.
- [Stable water flow] The whole house water filter system has passed 100,000+ water hammer tests to ensure a stable and safe water supply.
- [DIY installation] The installation is so simple that you can do it on your own following the instructions in the manual.
- [Protects water appliances] This 10"x4.5" whole house water filtration system protects your water pipes from rust and extends the lifespan of your water-related appliances.
Waterdrop WHF21-PG 5 Micron 2-Stage Whole House Water Filtration System
Model
WD-WHF21-PG
Flow rate
Up to 15 GPM
Working pressure
25-90 psi
Operating temperatures
40-100℉(4-38℃)
Feed water requirement
Municipal tap water
Replacement Filter
WD-WF10PG
Are whole house water filtration systems worth it?
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Why does water leak from the pressure release button?
Why does water flow slowly immediately after installation?









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Customer rating | ||||
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Price | $ | $ | $ | $ |
Flow rate | Up to 15GPM | Up to 15GPM | Up to 15GPM | Up to 15GPM |
Filtration Accuracy | 5 microns | 5 microns | 5 microns | 5 microns |
Recommended Filtration For | 5-stage filtration | 5-stage filtration | 7-stage filtration | 7-stage filtration |
Reduce Iron&Manganese | √ | × | √ | × |
Reduce Substance | 99.3% of iron, 96.3% of manganese, chlorine, and other impurities larger than 5 microns. | Chlorine, lead, benzene, mercury, peculiar smell, sand, rust, and other impurities larger than 5 microns. | Iron、manganese、chlorine、smell and odors、sediment、rust、sand and other large particles impurities | Chlorine, smell and odors, sediment、rust、sand and other large particle impurities. |
Certification | NSF/ANSI 372 | NSF/ANSI 372 | NSF/ANSI 372 | NSF/ANSI 372 |
Filter lifespan | WD-WF10FG | WD-WF10PG | WD-WF20FG | WD-WF20PG |
Dimensions(inch) | 14.4 x 7.48 x 15.6 | 14.4 x 7.48 x 15.6 | 22.9 x 8.46 x 26.1 | 22.9 x 8.46 x 26.1 |
Item Weight | 19.33 pounds | 21.6 pounds | 50.75 Pounds | 18.84 Pounds |