# Waterdrop WF20FG Whole House Filter Cartridge, WD-WF20FG

WD-WF20FG: The Waterdrop WF20FG is a whole-house replacement filter listing compatibility with WHF3T-FG. Its listed 20-inch dimensions and stated iron and manganese focus make cartridge fit and water conditions important checks before purchase.

- [Original product page](https://best-deals.pro/product/waterdrop-wf20fg-whole-house-filter-cartridge)
- [View offer](https://best-deals.pro/visit/waterdrop-wf20fg-whole-house-filter-cartridge)
- Market: US
- Language: en-US
- Currency: USD
- Brand: Waterdrop
- Model: WD-WF20FG
- Category: Tools & Garden > Electrical & Plumbing
- Price: 169.98 USD
- Previous price: 201.99 USD
- Discount: 16%
- Price checked: 2026-11-14T07:11:49.252Z
- Rating: 4.9 / 5
- Reviews: 14

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Listing describes a double iron-and-manganese removal cartridge with carbon fiber media.
- The manufacturer claims reductions of 95.9% for iron and 99.7% for manganese based on SGS testing.
- Described to target sediment, rust, sand, chlorine, odor and smell as well as iron and manganese.
- Manufacturer lists a 15GPM flow rate and support for well or municipal water sources.
- Replacement timing is listed as 6-12 months for the iron-and-manganese filter and 12 months for the GAC filter.

## Pros

- The described filtration targets iron and manganese alongside sediment and chlorine, addressing several common whole-house water concerns in one replacement cartridge.
- Listed 20-inch format and named WHF3T-FG compatibility help identify a potential fit when replacing a matching cartridge.

## Specifications

### Identity
- Brand: Waterdrop
- Model: WD-WF20FG
### Dimensions and installation
- Dimensions listed: 4.5"D x 4.5"W x 20"H
### Materials and filtration
- Material listed: Sediment+Iron & Manganese Removal

## Before you buy

- Listing details are not fully consistent: the title calls this a WF20FG filter compatible with WHF3T-FG, while feature text describes a whole-house system with two cartridges, seven-stage filtration and GAC replacement intervals. The product dimensions and replacement set contents are not clearly reconciled, so confirm the exact cartridge configuration and housing fit for your system before ordering. Performance figures and certification statements are manufacturer claims, not independently verified here.

## A good fit for

- Owners of a compatible whole-house filter looking for a cartridge described for iron and manganese reduction.
- Buyers treating well or municipal water who want the listed sediment, rust, sand, chlorine and odor targets.

## Less suited to

- Buyers who need a complete filter housing or verified installation hardware, since package contents are not specified.
- Anyone needing a water-treatment capability or contaminant reduction not explicitly described in this listing.

## Customer feedback

Aggregate ratings are strongly positive, but the available evidence contains no customer comments. Ratings alone cannot establish how well the filter performs or explain why customers rated it as they did, so buyers should base fit and treatment decisions on their water needs and the specific cartridge configuration.

## Frequently asked questions

### Will this fit a WHF3T-FG system?
The title states compatibility with WHF3T-FG. Confirm the cartridge dimensions and exact filter configuration for your system before buying, as the listing's cartridge and system descriptions are not fully consistent.
### What does the listing say it reduces?
It describes reduction of iron, manganese, sediment, rust, sand, chlorine and odor. The stated performance figures are manufacturer claims and are not independently verified here.
### How often should the filters be changed?
The listing says to change the iron-and-manganese filter every 6-12 months and the GAC filter every 12 months. Confirm which components are included and follow the instructions for your particular system.

## Alternative options

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- [AQUA CREST 5 Micron 10x4.5" Whole House Water Filter for Aqua-Pure® AP810 \| Replacement for 3M® Aqua-Pure AP811, AP801, AP801-C, AP801T, AP801B, Whirlpool® WHKF-GD25BB, WHKF-DWHBB, 3 Pack](https://best-deals.pro/visit/waterdrop-wf20fg-whole-house-filter-cartridge)
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- [iSpring US31 3-Stage Under Sink Water Filter System with Faucet, 1 Year \| 10000 Gal, NSF/ANSI Certified Filters, Reduces Chlorine, Sediment, and Harmful Chemicals, SGS-Tested, 5–10 Years Housings](https://best-deals.pro/visit/waterdrop-wf20fg-whole-house-filter-cartridge)
- [Pentair Pentek 150367 PBH Big Blue Bag Filter Housing, 1" NPT \#20 Bag Vessel Assembly with Gauge, Wrench and Drain Valve, 20-Inch, Black/Blue](https://best-deals.pro/visit/waterdrop-wf20fg-whole-house-filter-cartridge)
- [SimPure Whole House Water Filter System, 2 Stages Clear 10" x 4.5" \| Reduces Chlorine, Odor, Taste, Iron \| Sediment & CTO Carbon Pre-Filtration \|1" NPT Brass Port, BPA-Free Heavy Duty](https://best-deals.pro/visit/waterdrop-wf20fg-whole-house-filter-cartridge)
- [Waterdrop BG103 Mega Spin Down Sediment Filter, 500 + 200 Micron \| Upgraded Reusable Backwash Whole House Water Filter System for City/Well Water, 1" MNPT + 3/4" FNPT, BPA Free](https://best-deals.pro/visit/waterdrop-wf20fg-whole-house-filter-cartridge)
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## Add-ons

- [Waterdrop WHF3T-FG 3-Stage Whole House Water Filter System for Well Water \| Reduces Iron & Manganese, Lead, Chlorine & Odor, 7-Stage Filtration, 5 Micron, 15 GPM, 1" Inlet/Outlet](https://best-deals.pro/visit/waterdrop-wf20fg-whole-house-filter-cartridge)
- [Waterdrop RPFK Spin Down Sediment Filter, 40-50 Micron, BPA Free \| Backwash Whole House Water Filter System for Well Water, 1" MNPT + 3/4" FNPT + 3/4" MNPT, Traps Sand](https://best-deals.pro/visit/waterdrop-wf20fg-whole-house-filter-cartridge)

## Images

![Waterdrop WF20FG Whole House Filter Cartridge, WD-WF20FG — 1](https://best-deals.pro/i/BKpQ7NRwVAh41kqEB4cXp96tWASUEtuwwghwC2CHEVoJvMzNs0qRE-B70arQJ8axV24yRwJBWWwiPy7Gv7Id0uc4o_lvIBnE97aTDNfF6-qAhE28vLqYMV4c.jpg)

![Waterdrop WF20FG Whole House Filter Cartridge, WD-WF20FG — 2](https://best-deals.pro/i/AkzTAlo2BIo19lcP_rzWeplpvJF0KKP2uxSS9JAIeU86o8jLxD3OeRqs1GGcPC-z677sey7rG1OXyAPpR3xwKR_9iUtIQTKpe3egFhHYBp5ck-pai-4VYe6F.jpg)

![Waterdrop WF20FG Whole House Filter Cartridge, WD-WF20FG — 3](https://best-deals.pro/i/iNVeALSIObleVW1w2S1fzflllwhsXfgxqAVyPvzerhT2-IEmskdleul4sDUfDP1FrDInDI-OhU_2iHPNoAbNbdCR80N-REd3NnqOFE8FRgZ_aozx1Klgbh61.jpg)

![Waterdrop WF20FG Whole House Filter Cartridge, WD-WF20FG — 4](https://best-deals.pro/i/h32L6QL28e3xxqffoCdTs11SnhFoQ5ZP8kavtC0LuRESF7ylbVmWKTQMOJtEjQDAFgNx9vwqaUFVEjTI-Mc4J0DAk0dQqmRL-0omO4fp_3skdVkgutqOOdVX.jpg)

![Waterdrop WF20FG Whole House Filter Cartridge, WD-WF20FG — 5](https://best-deals.pro/i/vF7tRdADaznFE-OMPqoN4BNHmQ1vPI6xyzXv7gybfITz_9PDffy7BhU29w-G_ogM4MYsNRsKu72siSHnaI81s2fdF-04TdiGFHk6V8xI1cFav80rPng3jvlY.jpg)

![Waterdrop WF20FG Whole House Filter Cartridge, WD-WF20FG — 6](https://best-deals.pro/i/vpFcJbjkFV13FTWWMFnc_uSt6x-_m2ckD82olW-IsUCQL3E85Jgzd9ctDicgcKpEYQu6t4x5Rzx860uMbNGZ7AjcgYzuIgAD42Nc3v3LuxNQX-56H4tsLbpE.jpg)

![Waterdrop WF20FG Whole House Filter Cartridge, WD-WF20FG — 7](https://best-deals.pro/i/BoDj0zF_o69Rvoh1jeACW3yRXB6_JOsUhRnzqECRrcLMnHY35HQThhV-jqG17aSMIlkCRveGIoVVrv_FWbX1M9PrNugYNAqHOEzlNVAfCij5VyWYehYOiEKC.jpg)