---
product_id: 403403360
title: "Gravity Water Filter, Compatible with BB9-2 Black Filters & PF-2 Fluoride Filters. Interchangeable with Doulton Super Sterasyl and Traveler, Nomad, King, Big Series"
brand: "waterdrop"
price: "R7896"
currency: ZAR
in_stock: true
reviews_count: 5
category: "Waterdrop"
url: https://www.desertcart.co.za/products/403403360-gravity-water-filter-compatible-with-bb9-2-black-filters-pf
store_origin: ZA
region: South Africa
---

# 6000 gal capacity Compatible with multiple filter systems Lead-free, food-grade materials Gravity Water Filter, Compatible with BB9-2 Black Filters & PF-2 Fluoride Filters. Interchangeable with Doulton Super Sterasyl and Traveler, Nomad, King, Big Series

**Brand:** waterdrop
**Price:** R7896
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your hydration game with crystal-clear confidence!

## Quick Answers

- **What is this?** Gravity Water Filter, Compatible with BB9-2 Black Filters & PF-2 Fluoride Filters. Interchangeable with Doulton Super Sterasyl and Traveler, Nomad, King, Big Series by waterdrop
- **How much does it cost?** R7896 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/403403360-gravity-water-filter-compatible-with-bb9-2-black-filters-pf)

## Best For

- waterdrop enthusiasts

## Why This Product

- Trusted waterdrop brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safe & Sustainable:** Crafted with lead-free, food-grade materials for peace of mind
- • **Taste the Difference:** Removes chlorine, sediment, and odors for crisp, refreshing water
- • **Seamless Compatibility:** Fits Berkey BB9-2, PF-2, and Waterdrop Gravity systems effortlessly
- • **Long-Lasting Performance:** Filters up to 6,000 gallons without compromising quality
- • **Ultimate Filtration Power:** Combines black carbon & fluoride filters for superior toxin reduction

## Overview

The Waterdrop Gravity Water Filter is a premium replacement filter set compatible with Berkey BB9-2 black and PF-2 fluoride filters, as well as Waterdrop gravity systems. Designed to reduce harmful substances like chlorine, sediment, and fluoride, it delivers cleaner, fresher-tasting water. With a robust 6,000-gallon lifespan and crafted from lead-free, food-grade materials, it ensures safe, long-lasting filtration for your home or outdoor adventures.

## Description

Waterdrop NSF/ANSI 42&372 Standard Gravity Water Filter, Replacement for Berkey BB9-2 Black Filters & PF-2 Fluoride Filters, Berkey Gravity Water Filter System and Waterdrop King Tank Series

Review: Even though the TDS barely budged and it basically runs right through the filter /: we do think the water tastes soo much more clean, crisp, less drying in our mouth, and much more refreshing. However, lol… I’ve read “TDS readings won’t change after carbon filtration because a TDS reading includes the beneficial minerals a carbon filter like this is letting pass through, but doesn’t include the harmful toxins that a carbon filter is filtering…” but many toxins that these filters claim to filter ARE soluble (fluoride, nickel, aluminum, lead, tin, mercury, etc) and if they’re being filtered, it should reflect a lower TDS reading. I definitely don’t think “0” TDS is the goal and using distilled/evaporated water would be another step to leaving more solids behind… but you spend good money on a carbon filter that’s supposed to work via adsorption: it needs contact time to efficiently filter toxins and the more contact time, the more efficient filtration. So this flow rate is questionable too because it’s so fast the toxins aren’t getting the contact time needed to be trapped and adhere to the carbon. Ideally, who wouldn’t want to send a sample to a lab to know exactly what’s in it! We just cant swing that and the reviews online made us skeptical of the home kits too. Maybe it’s removing the chlorine since it smells and tastes great, but the flow rate and TDS reading are definitely worth knowing about.
Review: Passed the red dye test perfectly! I primed both the white fluoride filters and the black carbon filters before using as per the instructions. Performed the red dye test and the filters passed beautifully.

## Features

- Compatible with: Replacement for Berkey BB9-2 black Filters & PF-2 Fluoride Filters Combo Pack, Travel, Big, Royal, Imperial and Crown Berkey Gravity filter system. And it is compatible with Waterdrop Gravity-fed Water Filter System. The water filter is not sourced by or sponsored by Berkey. Waterdrop is an independent brand.
- This filter set combines black carbon filters and fluoride filters to absolutely reduce harmful substances from the outdoor water source. With this product, you can breathe the fresh air and immerse yourself with fresh water. Please note that TDS level does not fully indicate the quality of the water and our filters DOES NOT lower TDS value.
- The premium carbon block can absorb many impurities like sands, rust, sediment, bad taste, and odor. This product is characterized by uniform particles and a smooth surface to properly reduce chlorine, which is the primary cause of bad taste. Afterward, much cleaner water passes through the granular activated carbon to achieve superior performance on taste improvement.
- Durable life span without compromising performance. To attain the best product performance, we recommend you replace the black carbon filter every 6,000 gallons per pair and replace the fluoride filter every 1,000 gallons per pair, which will be different based on water conditions. Please flush black carbon filter for 1 minute and fluoride filter for 20 seconds before use by connecting to faucet. Note: if faucet not fully compatible, splashing may occur but won't affect product.
- Food-grade materials. Not only do we firmly control the filter material but also adopt lead-free materials to produce the filter housing. Waterdrop aims to provide you with a broad protection service. We have outstanding customer support service to enhance the use of our products. Our agents are available at all times to expertly attend to your questions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07YV1GXSH |
| Brand | Waterdrop |
| Capacity | 6000 gallons |
| Colour | Black |
| Customer Reviews | 4.3 4.3 out of 5 stars (583) |
| Date First Available | 8 Oct. 2019 |
| Item Weight | 1.42 kg |
| Material | Carbon Fibre |
| Model Number | WD-W7990 |
| Product Dimensions | 8.64 x 26.42 x 32 cm; 1.42 kg |

## Product Details

- **External testing certification:** NSF/ANSI 42&372 Standard
- **Item weight:** 1.42 kg
- **Material:** Carbon Fibre
- **Product benefits:** Effectively reduces harmful substances and improves taste while ensuring a long lifespan.
- **Product dimensions:** 19D x 8.7W x 32H centimetres

## Images

![Gravity Water Filter, Compatible with BB9-2 Black Filters & PF-2 Fluoride Filters. Interchangeable with Doulton Super Sterasyl and Traveler, Nomad, King, Big Series - Image 1](https://m.media-amazon.com/images/I/513moEhfyTL.jpg)

## Questions & Answers

**Q: Where is the independent testing/third party on these filters? This company has a history of being deceptive about their filters.**
A: It’s March of 2022 I just spoke to “Mia” who is still fielding calls and then sending generic responses (it removes taste and odor!) via email with her name in them. 
Waterdrop filter reps have yet to substantively reply to my finite request for specifics of any/all products removed from water through (their carbon + flouride filters) and at what rate (%) of reduction. 
So too no responses were received asking for their NSF ANSI attainment levels. 
Based on a lack of any results in receiving their transparency thus far ...imho the lack of forthrightness negates my justifying a purchase of their gravity water system and/filters for purposes of water purification.

**Q: So where is the lab test rating?  Where can I find the lab test rating?**
A: I contacted the company to ask if they could send me a copy of the filtration quality metrics and third-party verification. This was their reply: 

“Dear [removed], 
Thanks for your reply. 
Sorry to tell you that we don't have the datasheet you need, please rest assured that our company offers quality products at a lower price without compromising quality. The filter materials in these are in good quality. 

Best Regards, 
Mia Lauren, 
Customer Service Rep”

**Q: I have a propur Big, it has 7" white ceramic filters.  How would I install the flouride filter that comes with these black filters?**
A: Install the black filter on the top of gravity water filter firstly, then install the flouride filter.

**Q: Would running one fluoride and one regular black charcoal filter be sufficient in my 2.25 Waterdrop System?**
A: Hi,
Thanks for your interest in our filter product.
Please note that we recommend using 2 fluoride filter and 2 black filter in the system to ensure performance, thank you.
If you have contacted us via email but received no reply, please check the Spam/Junk Folder first. Thank you.

If you have any other inquiries, please feel free to contact us.
1-888-352-3558 (8:00 AM - 5:00 PM PST, Mon - Fri).

Kind Regards
Mia Lauren　
Customer Service Rep

## Customer Reviews

### ⭐ Review
*by D***A on 27 January 2024*

Even though the TDS barely budged and it basically runs right through the filter /: we do think the water tastes soo much more clean, crisp, less drying in our mouth, and much more refreshing. However, lol… I’ve read “TDS readings won’t change after carbon filtration because a TDS reading includes the beneficial minerals a carbon filter like this is letting pass through, but doesn’t include the harmful toxins that a carbon filter is filtering…” but many toxins that these filters claim to filter ARE soluble (fluoride, nickel, aluminum, lead, tin, mercury, etc) and if they’re being filtered, it should reflect a lower TDS reading. I definitely don’t think “0” TDS is the goal and using distilled/evaporated water would be another step to leaving more solids behind… but you spend good money on a carbon filter that’s supposed to work via adsorption: it needs contact time to efficiently filter toxins and the more contact time, the more efficient filtration. So this flow rate is questionable too because it’s so fast the toxins aren’t getting the contact time needed to be trapped and adhere to the carbon. Ideally, who wouldn’t want to send a sample to a lab to know exactly what’s in it! We just cant swing that and the reviews online made us skeptical of the home kits too. Maybe it’s removing the chlorine since it smells and tastes great, but the flow rate and TDS reading are definitely worth knowing about.

### ⭐⭐⭐⭐⭐ Review
*by V***L on 12 January 2026*

Passed the red dye test perfectly! I primed both the white fluoride filters and the black carbon filters before using as per the instructions. Performed the red dye test and the filters passed beautifully.

### ⭐⭐⭐⭐⭐ Review
*by S***L on 28 January 2026*

Exactly what I expected & as described

## Frequently Bought Together

- Waterdrop NSF/ANSI 42&372 Standard Gravity Water Filter, Replacement for Berkey® BB9-2® Black Filters & PF-2® Fluoride Filters, Berkey® Gravity Water Filter System and Waterdrop King Tank Series
- Waterdrop Sight Glass Spigot, Replacement for The Berkey® Gravity-Fed Water Filtration System, Clear View Water Level with Red Floating Ball, Durable Metal Material
- Waterdrop Water Filter Stainless Steel Stand, with Rubberized Non-Skid Feet, Replacement for Berkey® Water Filter System, King Tank Gravity-fed Water Filter System

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-17*