Propur Shower Filter Review – ProMax Model with Massage Shower Head

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Today’s review features the Propur ProMax 4-stage shower filter. According to Propur, the water filter is tested against NSF standards to reduce 200+ contaminants that might be lurking in your shower water, protecting your skin and hair from their unhealthy effects.

This is probably the most thorough testing we’ve ever seen being performed on a shower filter. Plus, the Propur ProMax improves water odor and taste (in case you get thirsty). Do we have your attention?

Propur ProMax Shower Filter

Propur ProMax Shower Filter with Massaging Wand

Flow Rate:2.0 gpm
Filtration Capacity:6-9 Months
Annual Cost:$$$$

Our Rating

Propur Shower Filter – Key Features

What we like most about the ProMax shower filter is the fact that it was thoroughly tested (not certified) against NSF Standards 42 and 53. Here is an excerpt from the lab report:

The filter reduces or removes

  • Dozens of VOCs – the majority above 90%
  • Aluminum – 74.2%
  • Arsenic – 28.0%
  • Chromium – 28.8%
  • Lead – 61.1%
  • Mercury – 79.2%
  • More than 40 pesticides – most around 50 to 60%, Glyphosate reduction: 47.5%
  • Semivolatile contaminants – 70-80% on average
  • Chloramines – 71.0%
  • Free chlorine – 57.1%
  • Sodium fluoride – 48.2%
  • Nitrates – 23.6%
  • Nitrites – 82.8%
  • Herbicides and pharmaceutical drugs – e.g. DCPA (83.3%), Dalapon (83.3%), Acetaminofen (74.1%), BPA (72.7%), Progestrone (75.0%)
  • E Coli bacteria – 48%

As you can see, the filter is NOT perfect for all types of contaminants, heavy metals in particular. This is also why Propur advises against the use with microbiologically unsafe water without adequate disinfection.

Still, the filtration performance is pretty solid when compared to other filter models on the market. By the way, ProMax shower filters use four propriety filtration layers but neither contain resins nor beads.

The flow rate is 2 gallons per minute which is just fine to get enough pressure going.

Propur ProMax Pros

ProMax shower filters come with a massaging head. You can choose between different finishes: White, chrome, antique bronze (our personal favorite), and brushed nickel.

The chrome version is also available with a handheld wand plus durable stainless steel flex hose.

All heads offer 5 different spray settings for the highest comfort.

More pros:

  • Easy to install.
  • Long-lasting filters for low maintenance requirements.
  • Made from BPA-free plastic.


As with most shower filters, installing a Propur ProMax is simple and straightforward and shouldn’t take more than a couple of minutes. Just follow these instructions:

  1. First, remove the existing shower head.
  2. Clean the threaded end of the shower arm and apply about 3 layers of Teflon tape (included).
  3. Next, insert the washer into the female threaded end of the shower filter housing and mount the assembly onto the shower arm. Hand-tighten only.
  4. For the dual shower head (discontinued), you need to install the diverter valve with the overhead shower head to the shower filter. Then you can attach the hose and handheld wand. Lastly, attach the suction mount to a flat wall. In case the mount doesn’t work with your wall surface use the adhesive mount (included).
  5. Flush the filter for 15 seconds before use.

The filter fits ½” standard pipe threads.


As with the installation, replacing filters is a quick and easy process:

  1. Remove the filter assembly from the shower arm.
  2. Unscrew the filter housing.
  3. Take out the old cartridge.
  4. Check that the 3 O-rings are in good condition and properly seated. Replace if need be (included with replacement cartridge).
  5. Insert new filter with the screen mesh facing upwards.
  6. Screw housing back together.
  7. Reattach shower filter assembly to shower arm.
  8. Remember to flush for 15 seconds before using the water.

Filtration capacity: Up to 6-9 months. Cost? Around $40 per cartridge which we find acceptable.


Here is a link to the manual.

Propur ProMax Cons

The initial purchase price is quite high, especially if you don’t go with the white standard version.

Other than that, only a few minor issues such as some replacement filters not lasting a full 6 months.

Propur ProMax Shower Filter Review: Our Verdict

All in all, most people are pleasantly surprised about the Propur ProMax shower filter and the filtered water quality it provides. They’ve praised the easy install and nice flow, and just enjoy their new shower experience. Personally, we really appreciate all the testing Propur has gone through. Results are satisfying and you can easily tell if the ProMax is the right shower filter for your water conditions. 4 stars!

Looking for More Propur Water Filter Information & Reviews?

Find more Propur water filter reviews here.

Or check out the BOS shower head filters best-of list!

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This completes our Propur ProMax shower filter review. If you have any questions please don’t hesitate to leave a comment below!

About the Author Gene Fitzgerald

Gene Fitzgerald has been with BOS since the very beginning. She is head of content creation and has fully immersed herself into the home water treatment industry only to become an expert herself. Outside of BOS, Gene loves reading books on philosophy & social issues, making music, and hiking.
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