Waterdrop - AP5527 Post Water Filter Cartridge, Model No.WD-W59, Replacement for Aqua-Pure System - White
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About this product
After advanced upgrade, the model number is changed from WD-AP5527 into WD-W59. Waterdrop filters are of premium quality, dedicated to improving water quality. Waterdrop filter can effectively reduce chlorine, taste and odor, which is certified by IAPMO against NSF/ANSI 42 standard. Apart from that, it can also reduce heavy metals, sediment and rust.
Authority Guaranteed materials
Specially selected premium materials are lead-free, which is fully certified by the IAPMO against NSF/ANSI 372 standard.
Stable flow rate
The fast yet stable water flow is another advantage for further filtration.
Long service life
Enjoy refreshing taste by changing your filter every 12 months or 6000 gallons. Still, it depends on your local water quality.
Fits the following models
Aqua-Pure AP5527, 5598101, AP-RO5500, APRO5500 Under Sink Reverse Osmosis System. Please note that the replacement model numbers of the 3M products are quite similar.
- BrandWaterdropModel NumberWD-AP5527Product NameWaterdrop AP5527 Post Water Filter Cartridge, Model No.WD-W59, Replacement for Aqua-Pure SystemColorWhiteProduct Height6.8 inchesProduct Width3.4 inches
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After advanced upgrade, the model number is changed from WD-AP5527 into WD-W59. Waterdrop filters are of premium quality, dedicated to improving water quality. Waterdrop filter can effectively reduce chlorine, taste and odor, which is certified by IAPMO against NSF/ANSI 42 standard. Apart from that, it can also reduce heavy metals, sediment and rust.

The Waterdrop G3P600 is a tankless under sink reverse osmosis system with 8-stage filtration, certified by NSF/ANSI 42, 58, and 372, as well as FCC, EU, and UKCA standards. Tested by SGS, it effectively reduces TDS, PFAS, fluoride, heavy metals, salts, and other contaminants, delivering up to 600 GPD with a 2:1 pure-to-drain ratio. Its smart display faucet provides real-time TDS monitoring and filter life tracking, while the sleek tankless design saves 70% under sink space and allows quick 3-second filter changes without tools. This system requires under-sink electricity and offers fast, stable water flow ideal for daily drinking and cooking.

A smart choice of over 2,000,000 American families. The Waterdrop G3 series RO system has been a star product among Waterdrop products, which has become a first choice of 2,000,000 American families and widely praised by users and social media thanks to its smart design.

The Waterdrop TSU is a 0.01 micron ultra-filtration under sink water filter system with a 3-stage tankless design and premium brushed nickel faucet. It reduces over 30 substances including chlorine, PFAS, heavy metals, taste, and odor while retaining beneficial minerals, without wasting water or reducing TDS. Featuring a smart panel with filter life reminders, the UF filter lasts up to 24 months, CT filter 12 months, and PP filter 6 months, minimizing maintenance costs. Compact and space-saving at just 4.68"W x 13.97"H x 14.81"L, it fits easily under most sinks and includes all components for simple installation, offering cleaner, great-tasting water with lasting convenience.
| Pros for Waterdrop - AP5527 Post Water Filter Cartridge, Model No.WD-W59, Replacement for Aqua-Pure System - White | |||
|---|---|---|---|
| There were no pros for this product— | There were no pros for this product— | Water Quality, Installation | There were no pros for this product— |
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