What replacement filters fit a 3M Aqua-Pure CMTRO-75?
The 3M Aqua-Pure CMTRO-75 reverse osmosis system uses 3 filter stages.
Key takeaways
- Reverse Osmosis system by 3M Aqua-Pure.
- 3 filter stages: 47-55706G2, 66-4710G2, 47-55710G2.
- NSF certified to reduce arsenic (pentavalent), barium, cadmium, chlorine, and more.
- A cheaper compatible filter set can fit the same housings - confirm its own certification before buying.
Buy the replacement filters for your CMTRO-75
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Filter stages
- Stage 1
- 47-55706G2
- Stage 2
- 66-4710G2
- Stage 3
- 47-55710G2
What the CMTRO-75 removes
The CMTRO-75 is NSF/ANSI certified to reduce the following, grouped by the standard it was tested to:
NSF/ANSI 42 - Chlorine
Chlorine, Taste and Odor
NSF/ANSI 58 - Arsenic (Pentavalent)
Arsenic (Pentavalent), Barium, Cadmium, Chromium (Hexavalent), Chromium (Trivalent), Copper, Cyst, Fluoride, Radium 226/228, Lead, Selenium, TDS, Turbidity
Filters for the rest of your home
FiltersDex covers the exact replacement filter - and what it removes - across every appliance:
Frequently asked
What replacement filters fit a 3M Aqua-Pure CMTRO-75?
The 3M Aqua-Pure CMTRO-75 uses 3 filter stages: 47-55706G2, 66-4710G2, 47-55710G2.
Is the 3M Aqua-Pure CMTRO-75 NSF certified?
Yes - the 3M Aqua-Pure CMTRO-75 itself is listed in the NSF Drinking Water Treatment Units (DWTU) database, certified to reduce arsenic (pentavalent), barium, cadmium, chlorine, and more.
Does the 3M Aqua-Pure CMTRO-75 remove lead?
Yes - the 3M Aqua-Pure CMTRO-75 is NSF certified to reduce lead.
Should I buy the genuine filter set or an aftermarket one?
The genuine 3M Aqua-Pure cartridges are the safe, exact-fit choice. A cheaper compatible set can fit the same housings too - just confirm it carries its own independent certification for the contaminants you care about before buying.