Weddell Duo
Score: 88/100
SecondShower Filtered Shower Head
Score: 85/100Rankings
The Weddell Duo is a premium, NSF-certified shower filter that offers verified chlorine reduction and a high flow rate of 2.8 GPM. Its dual-cartridge design enhances performance and prevents clogging, making it a reliable choice for health-conscious users. While it carries a higher price tag, its clinical testing and visible filter monitoring justify the investment for those prioritizing water quality.
The Second Shower Head is an NSF-certified filtered showerhead designed to remove 99.9% of chlorine and chloramine using a dual filtration system. It features a natural filtration approach with vitamin C and micron PP filters, distinguishing it from competitors using KDF. Best suited for households dealing with hard water issues and those prioritizing eco-friendly solutions.
| Attribute | | |
|---|---|---|
2.8 GPMbest | — | |
2best | 2best | |
8,000 monthsbest | 3 months | |
8,000 gallonsbest | — | |
— | 1best | |
| ↓ lower better | 8.66 inches | 5.4 inchesbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Compatibility & Installation(3) | ||
Shower Compatibility | Standard (Rain, Fixed, Handheld) | Standard U.S. Shower Arms |
Connection Size | Standard | 1/2-inch NPT |
Installation Type | Tool-free | Tool-Free |
Features & Usability(1) | ||
Spray Settings | null | 1 |
Maintenance & Warranty(4) | ||
Filter Lifespan (months) | 8000 months | 3-6 months |
Certifications | NSF/ANSI 177, NSF/ANSI/CAN 372, IAMPO verified | NSF/ANSI 42 |
Filter Capacity (gallons) | 8000 gallons | gallons |
Warranty Length (years) | null years | years |
Build & Design(2) | ||
Housing Material | Plastic/Carbon | Chrome-free Metal |
Overall Length (inches) | 8.66 inches | 5.4 inches |
Products in the top-left offer the best value (high score, low price).
Professional reviewers praise the Weddell Duo for superior contaminant removal and 100% chlorine reduction in lab tests. Experts highlight the dual-cartridge design for preventing clogging but caution that PFAS and particulate reductions rely on independent verification rather than official NSF certification.
Users appreciate the dermatologist approval and clinically tested benefits for skin and scalp health. Many report noticeable improvements in water quality, with some noting that the filter makes water softener-treated water feel even softer.
“made my water softener treated water even softer”
Professional reviewers note the NSF certification and dual filtration system but cite a lack of comprehensive technical specifications and independent professional reviews.
Users report significant improvements in water quality, noting reduced stains and softer skin and hair, with praise for ease of installation.
