5 Best RO Membrane in 2022 (Top Rated)

If you are shopping for a new reverse osmosis (RO) system for your home, you may be wondering which membrane is best.

This is a common question since many different types and brands of RO purifier membranes are on the market.

We have researched for you and compiled a list of the 5 best RO membranes in 2022.

Keep reading to learn more about these top-rated products and find the perfect one for your system needs!

How Does An RO Membrane Work?

Reverse osmosis is a water filtration process that removes impurities by using water pressure to force molecules through a semi-permeable membrane.

This membrane allows acidic cleaning solution for water purification while blocking contaminants, including bacteria, parasites, particulate matter, and dissolved minerals.

RO unit membranes can be used in various settings, including homes, businesses, and spacecraft!

Choosing the best RO membrane cleaning is vital to ensuring that your water filtration systems are effective.

5 Best RO Membrane In 2022

  1. Membrane Solutions RO System 50 GPD
  2. Greatwell Reverse Osmosis Membrane 75 GPD
  3. Express Water – FLTMEME50 – Reverse Osmosis Membrane
  4. Filmtec 75 GPD Filmtec Residential RO Membrane
  5. Pentair OMNIFilter OM1 Reverse Osmosis Membrane

1. Membrane Solutions RO System 50 GPD

Membrane Solutions is a well-known and respected company in the reverse osmosis industry.

This product is their standard TFC (thin film composite) membrane, compact design to fit most RO pre-filters systems.

The 50 GPD membrane has a 97% salt rejection rate, making it an excellent choice for those who want to remove organic matter impurities from their tap water conditions.

The company offers on-demand support, so you can always get help if you have questions about the product or your RO filter system.

SAFETY: The semi-permeable membrane is made of food-grade material and tested by an independent third party.

It meets NSF/ANSI 58 standards, providing safe-clean fresh drinking water.

50 GPD: This membrane has a high 50 GPD flow rate, perfect for homes with moderate water softener demands.

UNIVERSAL SIZE: It will fit most standard RO housings, making it an excellent choice for those who want an easy frequent membrane replacement.

IMPRESSIVE LIFE: This membrane has an aquatic life expectancy of 24 and 36 months, based on average feed purified water quality.

  • High 50 GPD flow rate
  • Tested to meet NSF/ANSI 58 standards
  • Universal filter size will fit in most
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2. iSpring Greatwell Reverse Osmosis Membrane 75 GPD

The iSpring Greatwell RO membrane is one of the best on the market for a good reason.

It can remove an impressive 99% of contaminants from your urban tap water, including lead, chlorine smell, fluoride, and more.

It’s also NSF/ANSI certified, meaning it meets high standards for quality and safety.

This semi-permeable membrane is made of food-grade material.

It has a 0.0001-micron size, ensuring that only urban tap water conditions molecules will pass through.

 It’s an excellent choice for families of any filter size, as it can produce up to 75 gallons of clean drinking water per day.

Plus, the dry version of this membrane is easy to store and doesn’t require unique preservation methods.

Top-notch Quality: It has been independently tested by NSF/ANSI standards.

Standard Size: Industry-standard size membrane that fits most standards under kitchen sink RO membrane cleaning housings.

High packing density to remove organic matter contaminants: The 0.0001-micron size only lets acid water molecules squeeze through and virtually nothing else.

The dry version of this membrane is easy to store: self-preserving, and no need for vacuum sealing or unique preservation methods.

  • Membrane life with a carbon filter kit removes up to 99% of contaminants
  • NSF/ANSI certified for quality and safety
  • Made of food-grade material
  • Produces up to 75 gallons per day of clean drinking water per day
  • Performance may very

3. Express Water – FLTMEME50 – Reverse Osmosis Membrane

The Express reverse osmosis water filter membrane is excellent for a sediment filter replacement membrane.

This RO system reduces impurities in your amounts of water purification, including heavy metals, TDS, arsenic, fluoride, and more.

It is made with high-quality materials for long-lasting filtration and value.

If you have any questions about this product, the experts at Express Water filterare happy to help.

High density:

The Express Water softeners FLTMEME50 reverse osmosis membrane has a high density, ensuring that even the most minor impurities are removed from your waste water ratio.

This RO membrane element is perfect for removing contaminants like heavy metals, TDS, arsenic, fluoride, etc.

Quick and easy replacement:

The Express membrane is a compact design for quick and easy frequent membrane replacement.

Replacing this RO system is a breeze, so you can get back to enjoying cleaning delicious, drinkable water in no time.


The advanced membrane technology element of the Express Water FLTMEME50 reverse osmosis water sediment filter is of great value.

The RO water membrane is made with high-quality reverse materials for long-lasting filtration.

 It is backed by on-demand support from the experts at Express Bottled Water.

  • High density
  • Quick and easy replacement
  • Value
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4. Filmtec 75 GPD Dow Filmtec Membrane

The Dow Filmtec 75 GPD RO Membrane is an excellent choice for looking for a reliable and efficient reverse osmosis water system.

This polyamide thin-film composite membrane is imported and has a capacity of up to 75 gallons of water per day, making it perfect for households of all sizes.

Additionally, it has a stabilized salt rejection of 98%, effectively removing contaminants from your fresh water.

This NSF/ANSI Standard 58 listed membrane is also easy to install, making it an excellent option for those new to reverse osmosis water systems.


  • Polyamide thin-film composite
  • Up to 75 gallons of water per day
  • 98% stabilized salt rejection
  • NSF/ANSI Standard 58 listed
  • Easy to install
  • Efficient
  • Reliable
  • Easy to install
  • Consistent Performance may very

5. Pentair OMNIFilter OM1 Reverse Osmosis Membrane

The Pentair Omni filter om1 is a reverse osmosis membrane compact design with the Pentair Omni filter system.

This replacement membrane has a 15-gallon-per-day flow rate.

 It is certified by NSF/ANSI to reduce Arsenic, cysts, dissolved solids, and lead from your drinking water.

This membrane should be replaced every 18-24 months for optimal system performance.


  • NSF/ANSI Standard 58 Certified
  • 15 GPD Flow Rate
  • Fits most major brands
  • Reduces cysts, dissolved solids, and lead
  • Replace every 18-24 months
  • Certified for reducing contaminants
  • High flow rate
  • Fits most systems
  • Must be replaced frequently

How to change or replace RO Membrane in RO Water Purifier?

  1. Shut off the water supply to your reverse osmosis system by turning off the shut-off valve.
  2. Drain the existing water from your RO unit by opening the faucet and allowing all of the feed water to empty from the storage tank.
  3. Disconnect your current RO membrane housing tubing using a razor blade or utility knife.
  4. Cut through the white plastic tubing, careful not to damage the blue tube underneath.
  5. Remove the old membrane by unscrewing it from the housing.
  6. Install the new membrane by screwing it into the housing and reconnecting the tubing.
  7. Ensure that the blue tube is on top, as this is the inlet for your potable water filter.
  8. Reconnect the water supply to your reverse osmosis system and turn on the shut-off float valve.
  9. Open the faucet to refill your storage tank.
  10. Allow the quality water purifier to flow for a few minutes to check for leaks.
  11. If you notice any leaks, shut off the water and make necessary repairs.
  12. Once everything is connected correctly, and leaks have been fixed, turn on your reverse osmosis system and enjoy clean, filtered, pure water.


When to Change Reverse Osmosis Membrane?

You must change your reverse osmosis membrane every 24 to 36 months.

However, this may vary depending on your specific water treatment system and the water supply quality.

If you notice a decrease in the quality of your pure water flow, it may be time to replace the membrane.

You can also refer to your owner’s manual for specific instructions on how to change your RO water membrane.

How to increase the life of the Reverse Osmosis Membrane?

There are a few things that you can do to help increase the usable life of your reverse osmosis membrane.

First, be sure to only use filtered water in your system.

 If you allow unfiltered water to enter the membrane surface, it will quickly wear down and require replacement.

You should also flush the membrane regularly with purified water to help remove any built-up sediment or contaminants.

 Additionally, it is essential to keep the storage tank full of water.

If the tank runs low, it will cause the membrane to work harder and eventually wear out.

How do you check Reverse Osmosis membrane is damaged?

If you think that your reverse osmosis membrane may damage, there are a few things that you can do to test it.

First, disconnect the tubing from the membrane housing and pour a glass of solids from water.

If the water is cloudy or has a sour taste, the membrane is likely damaged and needs replacement.

You can also check the pressure gauge on your RO unit.

If the clean water pressure is low, it may indicate that the membrane is not functioning correctly.

If unsure whether the membrane is weak, it is always best to consult with a professional.

It can adequately diagnose the problem and recommend the best course of action.


The best reverse osmosis membrane for your home depends on various factors, including the quality of your clean water supply and the size of your water treatment system.

However, the five membranes listed above are some of the market’s most popular and well-rated membranes.

So, you can be sure that you are getting a high-quality product, whichever one you choose.

Follow your owner’s manual instructions when it comes time to replace it with the best RO membrane.

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