Why Weddell Duo?

We take pride in delivering exceptional filtration and wellness benefits with the Weddell Duo, offering a shower filter that truly transforms your daily routine.

Toxin free showers

Increased skin hydration

Healthier, moisturized scalp

Supports overall health

NSF Certified

Public Test Reports

"Forever Chemicals" PFAS Reduction

Particulates Reduction

Clinically Tested

Dermatologist Approved

Performance You Can Verify

Chlorine Reduction

Certified by NSF in 2023

Weddell Duo was certified by NSF International to NSF/ANSI 177 and NSF/ANSI 372 standards.

PFAS Reduction

Verified by IAPMO Lab in 2023

Weddell Duo was verified by accredited IAPMO R&T LAB to NSF/ANSI 42 standard.

Particulates Reduction

Verified by IAPMO Lab in 2023

Weddell Duo was verified by accredited IAPMO R&T LAB to NSF/ANSI 53 standard.

From the Experts

"The Weddell Duo shower filter got the highest contaminant reduction score of all the shower filters we tested. It also scored well for its filtration rate, design quality, and setup and maintenance requirements, awarding it the highest overall score and making it the shower best filter we tested."

"The Weddell Duo is the best shower filter overall, and the only one tested and verified to remove PFAS, microplastics, and chlorine. It’s the shower filter that removes the most contaminants. What a relief! I use it in my own bathroom."

"Weddell Duo is the only shower filter on the market to be NSF certified and verified to reduce PFAS. It not only meets rigorous industry standards but also addresses real concerns about harmful contaminants that can affect your health."

"When it comes to shower filters, I didn’t really think there was much difference from one shower filter to the next. But when I started using the Weddell Duo I quickly found out I was wrong.“

Weddell Duo FAQs

What makes Weddell Duo different from other shower filters?

The Weddell Duo is unique in several key ways:

  1. Certified & Verified Performance: It’s the only shower filter certified by NSF to reduce Free Available Chlorine, while also maintaining verified performance in reducing PFAS and particulates, and other contaminants. Most other filters don’t have these certifications and can't guarantee the same level of protection.
  2. Clinically Tested & Dermatologist Approved: Weddell Duo has been clinically tested to improve skin hydration and scalp health, and is dermatologist approved, making it an excellent choice for those with sensitive skin or scalp concerns.
  3. Clear Dual Cartridges for Easy Monitoring: The Weddell Duo has clear dual cartridges, allowing you to see the condition of your filters. The right sediment filter shows discoloration over time, signaling when it needs to be replaced.
  4. Long-Lasting Filters: Weddell Duo’s filters have a life cycle of up to 8,000 gallons, offering longer-lasting protection compared to many other filters on the market.
  5. Easy Installation: Installation is tool-free and the Weddell Duo is compatible with a variety of shower heads, including rain, fixed, and handheld models.

How often do I need to replace the filter cartridges?

You should change your filters if any of the following occurs: 1) 5-6 months has passed, 2) you notice decreased water pressure and/or filter discoloration, or 3) when the rated capacity of the filter cartridge has been reached.

The frequency of replacement depends on your water usage and the quality of your water supply. Regular replacement ensures that your shower water remains clean and safe.

What contaminants does Weddell Duo remove?

Weddell Duo is designed to significantly reduce a wide range of contaminants including chlorine, PFAS, and particulates. This helps to improve the quality of your shower water for healthier skin and hair.

What are the reduction percentages for the contaminants that Weddell Duo removes?

Weddell Duo Shower Filter is NSF certified and has been rigorously tested and verified by an accredited third party lab to ensure high performance. Below are the specific contaminants it removes:

Free Available Chlorine: 99%

PFAS: 99%

Particulates: 99%

While Weddell Duo reduces other contaminants, we only publish reduction claims for those we have tested using established industry standards to prioritize transparency and reliability. Please see our testing data here for the most updated information.

Can I install the Weddell Duo Shower Filter myself?

Yes, the Weddell Duo Shower Filter is designed for easy, tool-free installation. It fits most standard showers and can be installed in minutes without the need for professional help.

For additional help, please check out our installation guide.

Will installing Weddell Duo affect water pressure?

Weddell Duo is designed to have minimal impact on water pressure. Since our maximum Gallons Per Minute (GPM) rate is 2.8 GPM, which is much higher than typical shower heads (2.5 GPM or less), your overall water pressure will be determined not by Weddell Duo, but by your shower head.

However, as Weddell Duo reaches its full capacity, the accumulation of filtered impurities may slow down the water pressure. This is an indication that it's time to replace the filter cartridges to ensure optimal performance and maintain water pressure.

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