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Multi-purpose 3m™ 3mdw301 Under Sink Drinking Water System Without Faucet Device [Pcr4o8m0]

$54.99 $175.99 -69%

Recently certified to reduce microplastics and select pharmaceuticals, the 3M™ 3MDW301 is an under-the-sink dedicate faucet water filtration system. The system is a great choice for cleaner, clearer, and better tasting drinking water, coffee, tea, or

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Recently certified to reduce microplastics and select pharmaceuticals, the 3M™ 3MDW301 is an under-the-sink dedicate faucet water filtration system. The system is a great choice for cleaner, clearer, and better tasting drinking water, coffee, tea, or cooking. 

The system incorporates an advanced multi-stage membrane and activated carbon block filtration process to help reduce Class 1 particulates, chlorine taste and odor, chloramine, asbestos, parasitic protozoan cysts*, lead, MTBE, TTHM, VOCs, 1,2,3-trichloropropane, emerging contaminants such as pharmaceuticals and personal care products (PPCPs) and endocrine disrupting compounds (EDCs) including microplastics, bisphenol A (BPA), diethyltoluamide (DEET), ibuprofen, atenolol, estrone, carbamazepine, linuron, metolachlor, meprobamate, naproxen, nonylphenol, phenytoin, and trimethoprim.

The 3MDW301 system is designed with a built-in shut off valve for simple filter changes; pressure relief valve to reduce water release during filter changes; and 3/8 inch NPT inlets and outlets for increased flow rates. The system includes head, the 3MDW311 activated carbon filter with a 0.2 nominal micron pharmaceutical-grade nylon membrane; and a pre-filter wrap to reduce sediment and other particulates while protecting the carbon media.

The 3MDW311 replacement filter features an advanced multi-stage filtration with membrane and activated carbon block media to provide cleaner, clearer, better tasting drinking water.

The universal system can be used on both municipal (chlorine or chloramine disinfected) and well water (non-chlorinated or disinfected) water systems.

Product Benefits:

  • One of the first filtration systems to be certified to reduce microplastics from drinking water.
  • Reduces select pharmaceuticals, including antibiotics, birth control, and pain relievers.
  • Reduces chlorine taste and odor, sediment, chloramine, MTBE, volatile organic compounds (VOCs), TTHM, asbestos, lead and cysts.
  • Installs under the sink for dedicated drinking and cooking water use. • Designed with built-in shut off valve – no need to shut off water for filter change.
  • Simple yet effective pressure relief valve reduces water release during filter changes. 
  • Combines effectiveness of activated carbon filtration with a 0.2 nominal micron pharmaceutical-grade nylon membrane filter.
  • 3/8” NPT ported inlets and outlets allow increased flow rates.
  • Pre-filter wrap reduces sediment and other particulate matter while helping protect the activated carbon block media.

3MDW301 Specifications:

  • Height: 16.25 inches
  • Diameter: 4.4 inches
  • Weight: 5.3 lbs. (approx.)
  • NSF Standards 42 and 53 certified

NOTE: This system requires a dedicated faucet that is sold separately.

What Our Customers Say

January 2, 2026

Absolutely no complaints!

A wonderful product, and very useful.

- Colin Z..

January 2, 2026

Absolutely no complaints!

A very clever purchase.

- Everett J..

January 2, 2026

Absolutely no complaints!

Love the simple, effective design.

- Kingston P..

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