Coconutfilter MOSAIC Shower Filter System-SG
A NSF-certified shower filter that is certified to reduce 1 contaminant at about 3.6¢ per gallon.
As an Amazon Associate we earn from qualifying purchases — disclosure.
You want to reduce chlorine in shower water for skin and hair.
Certified to reduce 1 contaminants.
This is an aesthetic-standard filter (NSF 42) — it improves taste and reduces chlorine, but is not certified for health contaminants like lead or PFAS.
What is shower filter? A small filter that screws onto the shower arm to reduce chlorine for skin and hair. Compare all filter types →
What it costs to own
| Upfront price | Check on Amazon → |
| Replacement filter (ScaleGuard) | $146.16Buy refill → |
| Estimated yearly cost (filters, ~3×/yr) | ~$438/yr |
| True cost per gallon | 3.6¢ |
Cost per gallon and yearly cost are our estimates from the rated capacity and current prices. The filter only works if you replace it on schedule.
What it's certified to remove
Certification is per-contaminant: the Coconutfilter MOSAIC Shower Filter System-SG is credited only for the contaminants listed here, verified by NSF. It does not imply removal of anything not listed.
✓ Verify this certification on the official NSF listing →
Full specifications
| Certified by | NSF |
| NSF/ANSI standards | 177 — shower filtration (aesthetic) |
| Filter type | Shower filter |
| Rated capacity | 4,000 gallons |
| Flow rate | 1 gpm |
| Replacement element | ScaleGuard |
| Installation | Screws onto the shower arm. |
Frequently asked
Is the Coconutfilter MOSAIC Shower Filter System-SG NSF certified?
Yes — the Coconutfilter MOSAIC Shower Filter System-SG is listed in the NSF certified-product database under NSF/ANSI standard 177. That means an independent body verified its claims (not just "tested to" a standard).
What does the Coconutfilter MOSAIC Shower Filter System-SG remove?
It is certified to reduce 1 contaminants: Chlorine / chloramine.
How much does the Coconutfilter MOSAIC Shower Filter System-SG cost per gallon?
About 3.6¢ per gallon, based on its rated capacity of 4,000 gallons and current price.
How often do you replace the shower filter?
A shower filter like this is typically replaced about 3 times a year (replacement element ScaleGuard). Replace on schedule — a spent cartridge stops reducing contaminants.
Compare similar shower filters
Source: NSF public certification listing. Specs and certified claims are from the official listing; cost figures are our estimates. Some links are affiliate links — see our disclosure.