SHOWER FILTRATION
NSF/ANSI 177
Free available chlorine reduction.
Certified for the chlorine-reduction claim in NSF’s shower filtration standard. This is not a water-softening or medical certification.
View official NSF listingIndependently certified. Openly documented.
The detail is
in the proof.
Not just a promise on a box. Weddell Duo (WD-100) is listed by NSF. See exactly what each certification covers.
MATERIALS & LEAD CONTENT
NSF/ANSI/CAN 372
Lead-content compliance.
Certified to the lead-content requirements for the product’s plumbing materials. This does not mean the filter removes lead from water.
View official NSF listingA closer look at the documentation
The NSF listing identifies model WD-100 and replacement element WD-100F, sold in three colours: Arctic White (WD-100WH), Midnight Black (WD-100BL) and Petal Pink (WD-100PN). Certification applies to the listed product and claims, not to Filter Me’s fitting service or every possible contaminant.
Weddell also publishes additional laboratory reports. Testing against a standard is not the same as certification to that standard. Results depend on test conditions and do not predict every home’s readings.
Read manufacturer test reportsSources: official NSF listings · Checked 9 October 2026. Your before-and-after readings are recorded at your own shower.