What it is: A shower filter replacement for your Red Light Showerhead Filter (sold separately).What it does: Keep the benefits of your HigherDOSE Red Light Shower Filter flowing with replacement filters that deliver cleaner, gentler water. Get the most out of every red light-enhanced shower with filter replacements that ensure every rinse is as clean as the last. Our filters set a new standard by delivering verified, multi-contaminant filtration that most shower filters don't even test for. The 10-stage filtration system removes chlorine, microplastics, heavy metals and VOCs while you shower, unlocking softer skin and visibly healthier hair. Combined with the multifunctional benefits of red light therapy, its the ultimate one-step routine to achieve an all-over glow.Features and benefits:- KDF-55: reduces heavy metals and inhibits bacterial growth- Vitamin E balls: infuse water with skin-loving antioxidants- Activated carbon: absorbs impurities, odors and VOCsSizing information: 3.5" x 3.5" x 3.5". BPA-free ABS plastic/plastic/metal Imported