Third-Party Tested. Proven Results.
Independent lab testing under the NSF/ANSI 177 standard confirms HammerHead®’s superior chlorine reduction over leading brands.
chlorine reduction at filter's mid-life
chlorine reduction at filter's end-of-life
more effective than leading brands
Shower Filter Cartridge Replacement
Fast & Free Shipping
3-day shipping on orders over $50
Hassle-Free Returns
Full refund within 90 days of purchase
Lifetime Warranty
We’ll repair or replace it — guaranteedThird-Party Tested. Proven Results.
Independent lab testing under the NSF/ANSI 177 standard confirms HammerHead®’s superior chlorine reduction over leading brands.
chlorine reduction at filter's mid-life
chlorine reduction at filter's end-of-life
more effective than leading brands
PRODUCT DETAILS
Matching shower filter replacement cartridge for HammerHead Showers Inline Shower Head Filter.
Tired of those filters with "12 stages" that claim a lot but don't do a thing to improve your water quality?
The HammerHead Showers Shower Head Filter is packed with the highest quality filtration media, including a proprietary blend of KDF 55 and Calcium Sulfite, the two most effective types of filtration media for shower head filters.
When it comes to shower filtration, it's all about the quality of the materials and the surface area covered — not how many stages there are. That's why we have locked in on these two chlorine-killers and customized the size of both the KDF and Calcium Sulfite to maximize surface area without compromising your shower head pressure.
HammerHead Showers filters have been 3rd party tested to effectively reduce chlorine and heavy metals so you get cleaner water in your shower, making your skin, hair and nails smoother than ever before!
FEATURES & BENEFITS
- Replacement filter cartridge designed specifically for HammerHead filter products.
- Premium filtration media helps reduce chlorine and other impurities for cleaner shower water.
- Supports healthier skin and hair by minimizing dryness, irritation, and buildup caused by harsh water.
- Effective in hot and cold water with media rated to perform across a wide temperature range.
- Easy cartridge replacement restores filtration performance without complicated steps.
- Maintains consistent water flow while filtering, so shower performance is not compromised.
WHAT’S INCLUDED
INSTALLATION & SPECS
| Manufacturer | HammerHead Showers |
| Model # | HOC |
| Cartridge Material | ABS |
| Filtration Material | Proprietary Blend of KDF 55 and Calcium Sulfite |
| Compatible With | HammerHead Showers HOC-INL-CH Inline Shower Head Filter |
| Contaminants Removed | Chlorine, Heavy Metals |
| Lifespan | 6-12 Months Depending On Use |
Product Videos
Warranty & Returns
Built to Last
Every product is made from premium metals like stainless steel and brass. No gimmicks. Just solid metal plumbing fixtures that hold up, use after use, year after year.
Hassle-Free Returns
Not feeling it? No worries. You've got 90 days from delivery to send it back. We accept returns for any reason — just return the product in good condition with all parts, instructions, and original packaging. View Full Return Policy
Lifetime Warranty
We stand behind our products — for life. This HammerHead Showers® product comes with a limited lifetime warranty for the original homeowner. If it leaks, drips, or fails under normal use, we’ll send you replacements or repair parts — free of charge. View Full Warranty Details
Customer-Proven Results
Based on a survey of over 100 filter customers, July 2025.
10,000 gallons
Filtration That Actually Performs
HammerHead®'s filters use genuine KDF-55® and calcium sulfite — proven filtration materials chosen for reducing chlorine and heavy metals in shower water. Third-party tested under NSF/ANSI 177, this focused approach outperforms multi-stage filters that rely on ineffective filler.
By reducing chlorine and other contaminants, water feels gentler on skin and hair — helping limit dryness, improve rinsing, and leave hair feeling smoother after every shower.
Each filter is designed to last up to 10,000 gallons or about 3 months of regular use (whichever comes first), delivering consistent filtration without frequent replacements.
Chlorine
A blend of KDF-55® and calcium sulfite reduces chlorine in shower water, helping limit dryness and irritation.
Heavy Metals
KDF-55® helps reduce heavy metals like lead and mercury that can affect skin and hair over time.
Bacterial Growth
KDF-55® naturally helps discourage bacteria and buildup inside the filter.
