Pentair OmniFilter BF36C
A NSF-certified whole-house filter that is certified to reduce 1 contaminant.
As an Amazon Associate we earn from qualifying purchases — disclosure. Amazon price as of October 20, 2026 at 2:01 PM ET; check Amazon for the current price.
You want every tap and shower treated — best for chlorine, sediment, and taste across the whole home.
Certified for taste, odor, and chlorine (an aesthetic filter).
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 whole-house system? A point-of-entry system installed on your main water line, treating every tap and shower in the house. Compare all filter types →
What it costs to own
| Upfront price | $80.82 |
| Replacement filter (OmniFilter TO8) | $80.82 Buy refill → |
| Estimated yearly cost (filters, ~1×/yr) | ~$81/yr |
| True cost per gallon | 0.2¢ |
Cost per gallon and yearly cost are our estimates from the rated capacity and the Amazon price as of October 20, 2026 at 2:01 PM ET. We show them only when we read the price from Amazon in the last 24 hours. The filter only works if you replace it on schedule.
What it's certified to remove
Certification is per-contaminant: the Pentair OmniFilter BF36C 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 | 42 — reduces taste, odor, and chlorine (aesthetic standard) |
| Filter type | Whole-house system |
| Rated capacity | 40,000 gallons |
| Flow rate | 4 gpm |
| Replacement element | OmniFilter TO8 |
| Installation | Point-of-entry install on the main line. Usually a plumber. |
Frequently asked
Is the Pentair OmniFilter BF36C NSF certified?
Yes — the Pentair OmniFilter BF36C is listed in the NSF certified-product database under NSF/ANSI standard 42. That means an independent body verified its claims (not just "tested to" a standard).
What does the Pentair OmniFilter BF36C remove?
It is certified to reduce 1 contaminants: Chlorine / chloramine.
How much does the Pentair OmniFilter BF36C cost per gallon?
About 0.2¢ per gallon, based on its rated capacity of 40,000 gallons and the Amazon price on October 20, 2026 at 2:01 PM ET.
How often do you replace the whole-house filter?
A whole-house filter like this is typically replaced about 1 time a year (replacement element OmniFilter TO8). Replace on schedule — a spent cartridge stops reducing contaminants.
Compare similar whole-house 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.