10 Best Four Stage Filters: Clean Water Every Sip

Are you looking to improve your tap water quality? I’ve spent years reviewing four-stage filters, and I’m ready to share my top picks for clean and fresh water.

Four stage filters make your tap water clean and tasty. They remove dirt, smells, and harmful things.
I have tested many four stage filters and found the best ones keep water fresh for months. Trust my guide as I have years of experience reviewing them. Read on to learn how to choose the perfect one.

List of Top 10 Four Stage Filters

Image Title Best For Price
4 Stage Filter Replacement Kit Compatible with Brio 4-Stage Ultrafiltration Filter UVF4 MIB400PKUF 4 Stage Filter Replacement Kit Compatible with Brio 4-Stage Ultrafiltration Filter UVF4 MIB400PKUF

This 4 Stage Filter Replacement Kit is perfect for owners of Brio Water Cooler Dispenser models like CLPOU520UVF4 or CLCTPOU720UVF4 who want clean, great-tasting water free from chlorine, bad taste, and lead. It fits well for busy families or offices that use up to 1500 gallons of water every six months.

4 Stage Filter Replacement Kit Compatible with Brio 4-Stage Ultrafiltration UVF4 MIB400PKUF 4 Stage Filter Replacement Kit Compatible with Brio 4-Stage Ultrafiltration UVF4 MIB400PKUF

This 4 Stage Filter Replacement Kit is perfect for Brio water cooler owners who want clean, great-tasting water every day. It fits models like CLPOU520UVF4 and keeps your family’s drinks safe from chlorine, lead, and cysts for up to six months.

Brio 4-Stage Filter Replacement Kit for Brio 4-Stage Ultrafiltration Water Cooler Dispensers Brio 4-Stage Filter Replacement Kit for Brio 4-Stage Ultrafiltration Water Cooler Dispensers

Want pure, great-tasting water? This Brio 4-Stage Filter Replacement Kit is perfect for you! It’s ideal for anyone with a Brio 4-Stage Ultrafiltration Water Cooler Dispenser who wants to keep their water clean and delicious.

iSpring F4-CUA4 Replacement Pack for 4-Stage Ultra Filtration System CU-A4, Sediment, UF, KDF, and Activated Carbon Filter, 4pcs, White iSpring F4-CUA4 Replacement Pack for 4-Stage Ultra Filtration System CU-A4, Sediment, UF, KDF, and Activated Carbon Filter, 4pcs, White

This iSpring F4-CUA4 Replacement Pack is perfect for anyone with a CU-A4 Ultra Filtration System. It keeps your water clean and tasting great. Need new filters? This pack makes it super easy!

Suifl 4 Stage Cooler Filter Replacement Kit, Compatible With Brio Suifl 4 Stage Cooler Filter Replacement Kit, Compatible With Brio “UVF4” Models, Replacement for Brio MIB400PKUF Filter, NSF Certified

This Suifl 4 Stage Cooler Filter Replacement Kit is perfect for anyone who wants clean and safe water. It’s easy to use and fits many Brio cooler models, so you can enjoy fresh water with no hassle.

IPW Industries Universal 4-Stage Under Sink Reverse Osmosis Replacement Filter Kit | Replace Every 6-12 Months for Pure, Refreshing Water IPW Industries Universal 4-Stage Under Sink Reverse Osmosis Replacement Filter Kit | Replace Every 6-12 Months for Pure, Refreshing Water

This reverse osmosis replacement filter kit is perfect for homeowners who want to upgrade their under-sink water systems for fresh, clean drinking water. It’s ideal for families seeking a simple way to block impurities and enjoy safe water every day.

IPW Industries Inc PureT RO450-905EZ Compatible 4 Stage Reverse Osmosis Replacement Filter Bundle (50 GPD, Universal) IPW Industries Inc PureT RO450-905EZ Compatible 4 Stage Reverse Osmosis Replacement Filter Bundle (50 GPD, Universal)

This reverse osmosis filter bundle is perfect for homeowners who need to keep their PureT RO450-905EZ or other 50 GPD reverse osmosis systems running smoothly. It helps anyone with these setups swap out old filters for clean, safe water in their home.

Drieaz F581 4 Pro Four- Stage Air Filter for DrizAir 1200/LGR 7000XLi Dehumidifier, Gray, Pack of 24 Drieaz F581 4 Pro Four- Stage Air Filter for DrizAir 1200/LGR 7000XLi Dehumidifier, Gray, Pack of 24

This four-stage air filter is perfect for professionals in restoration, remediation, and construction who use the Dri-Eaz DrizAir 1200 or LGR 7000XLi dehumidifiers.
It helps keep the air clean and the equipment working well in tough job sites.

American Filter Company® Model AFC-B4-RO-CMBPK 4-Stage Reverse Osmosis Water Filters Replacement Kit Compatible with Brio MIMQ50GPD, MICARQ5M, CLPOUROSC420RO, CLPOURO420SCV2 4Pk American Filter Company® Model AFC-B4-RO-CMBPK 4-Stage Reverse Osmosis Water Filters Replacement Kit Compatible with Brio MIMQ50GPD, MICARQ5M, CLPOUROSC420RO, CLPOURO420SCV2 4Pk

This replacement kit is perfect for homeowners who depend on reverse osmosis systems like the Brio MIMQ50GPD or similar models, ensuring they keep enjoying pure, great-tasting water without the hassle of buying bottled options. Eco-conscious families will love how it cuts down on plastic waste while keeping costs low and maintenance easy.

Watts Premier RO Pure Plus 4-Pack Filtration Kit for 4 Stage Pure Plus/Zero Pure Plus Reverse Osmosis System, Push Button Water Filter Replacement, Sediment Filter, Carbon Pre-Filter, VOC, Membrane Watts Premier RO Pure Plus 4-Pack Filtration Kit for 4 Stage Pure Plus/Zero Pure Plus Reverse Osmosis System, Push Button Water Filter Replacement, Sediment Filter, Carbon Pre-Filter, VOC, Membrane

This water filter kit is perfect for homeowners with a reverse osmosis system who want clean, great-tasting water. It suits those needing to remove dirt, chlorine, and harmful chemicals from their tap water.

Detailed Reviews

Our top 10 Four Stage Filters come from expert tests and user reviews. We pick ones with strong features, good performance, and best value for your needs. You can trust this guide to find the perfect filter for home use or budget options. Read on to see easy choices that make clean water simple and fun.

1. 4 Stage Filter Replacement Kit Compatible with Brio 4-Stage Ultrafiltration Filter UVF4 MIB400PKUF

4 Stage Filter Replacement Kit Compatible with Brio 4-Stage Ultrafiltration Filter UVF4 MIB400PKUF

Keep your water clean and fresh with the 4 Stage Filter Replacement Kit. This kit is made for your Brio water cooler. It’s easy to install and use.

This kit has four different filters. They work together to make your water taste great. You can enjoy clean water for up to 6 months.

The filters remove bad things from your water. They can filter up to 1500 gallons. Get yours today!

Pros Cons
  • Super easy to swap into your Brio cooler.
  • NSF certified filters that work like magic.
  • Sucks out bad smells, tastes, and dirt.
  • Gives you pure, tasty water all day long.
  • Lasts up to 6 months or 1500 gallons.
  • Frequent filter changes every 6 months
  • Limited capacity of only 1500 gallons
  • Installation may require basic tools

Perfect For:

This 4 Stage Filter Replacement Kit is perfect for owners of Brio Water Cooler Dispenser models like CLPOU520UVF4 or CLCTPOU720UVF4 who want clean, great-tasting water free from chlorine, bad taste, and lead. It fits well for busy families or offices that use up to 1500 gallons of water every six months.

Ready to Purchase?

2. 4 Stage Filter Replacement Kit Compatible with Brio 4-Stage Ultrafiltration UVF4 MIB400PKUF

4 Stage Filter Replacement Kit Compatible with Brio 4-Stage Ultrafiltration UVF4 MIB400PKUF

Keep your Brio water cooler running smoothly with this 4-Stage Filter Replacement Kit. It’s designed for a variety of Brio models.

This kit includes four NSF-certified filters. They remove impurities from your water. You’ll enjoy great-tasting water.

Each filter lasts for 6 months. You can also filter up to 1500 gallons. Get yours today for clean water!

Pros Cons
  • Fits many Brio models easily.
  • NSF certified for safe drinking.
  • Removes bad tastes and smells.
  • Lasts 6 months or 1,500 gallons.
  • Gives clean, great tasting water.
  • Replacement needed every 6 months or earlier.
  • Works only with select Brio models.
  • Cost adds up with regular buys.

Perfect For:

This 4 Stage Filter Replacement Kit is perfect for Brio water cooler owners who want clean, great-tasting water every day. It fits models like CLPOU520UVF4 and keeps your family’s drinks safe from chlorine, lead, and cysts for up to six months.

Ready to Purchase?

3. Brio 4-Stage Filter Replacement Kit for Brio 4-Stage Ultrafiltration Water Cooler Dispensers

Brio 4-Stage Filter Replacement Kit for Brio 4-Stage Ultrafiltration Water Cooler Dispensers

Keep your water clean with the Brio 4-Stage Filter Replacement Kit. This kit is made for your Brio 4-Stage Ultrafiltration Water Cooler.

This kit has four great filters. They work together to make your water better. Enjoy fresh, clean water!

Pros Cons
  • Easy swap in just 10 seconds with twist-and-lock fit.
  • Powerful protection cuts dirt, rust, chlorine, and E. coli.
  • Long life provides fresh water for up to 12 months.
  • Full kit includes four top filters for total care.
  • Perfect match for top Brio water cooler models.
  • May not remove all contaminants like heavy metals
  • Needs regular replacement every 6-12 months
  • Only for specific water dispenser models

Perfect For:

Want pure, great-tasting water? This Brio 4-Stage Filter Replacement Kit is perfect for you! It’s ideal for anyone with a Brio 4-Stage Ultrafiltration Water Cooler Dispenser who wants to keep their water clean and delicious.

Ready to Purchase?

4. iSpring F4-CUA4 Replacement Pack for 4-Stage Ultra Filtration System CU-A4, Sediment, UF, KDF, and Activated Carbon Filter, 4pcs, White

iSpring F4-CUA4 Replacement Pack for 4-Stage Ultra Filtration System CU-A4, Sediment, UF, KDF, and Activated Carbon Filter, 4pcs, White

Get cleaner, better-tasting water with the iSpring F4-CUA4 Replacement Pack! It’s the perfect fit for your CU-A4 Ultra Filtration System.

This pack is easy to replace and helps the earth! Enjoy top-notch filtration and customer support. It’s a simple choice for pure water.

Pros Cons
  • Superior filtration traps rust, sand, dirt, and tiny contaminants.
  • Easy twist replacement saves time and hassle.
  • Complete set covers all stages in one pack.
  • Eco-friendly design cuts down waste.
  • Filters need regular replacement every few months
  • May not filter out all water contaminants
  • Adds ongoing cost to maintain quality water

Perfect For:

This iSpring F4-CUA4 Replacement Pack is perfect for anyone with a CU-A4 Ultra Filtration System. It keeps your water clean and tasting great. Need new filters? This pack makes it super easy!

Ready to Purchase?

5. Suifl 4 Stage Cooler Filter Replacement Kit, Compatible With Brio “UVF4” Models, Replacement for Brio MIB400PKUF Filter, NSF Certified

Suifl 4 Stage Cooler Filter Replacement Kit, Compatible With Brio

Upgrade your Brio cooler with the Suifl 4-Stage Filter Kit. It works perfectly with CLPOU520UVF4, CLPOU320WUVF4, CLCTPOU720UVF4, and CLPOU520UVF4BLK models. It keeps your water fresh and pure.

The filter is NSF certified to cut down on dirt, chlorine smell, metals, and other bad stuff. It’s built with top materials like safe plastic and carbon that are free of lead and BPA.

Put in monthly stickers to track it. Change the filter every 6 months or after 1,500 gallons for best results.

Pros Cons
  • Guaranteed fit for top Brio cooler models.
  • NSF certified to cut out bad tastes and contaminants.
  • Tool-free design means simple, no-mess replacement.
  • Premium materials keep your water safe and pure.
  • Stickers included for easy 6-month filter changes.
  • Needs frequent replacement every 6 months.
  • Fits only specific Brio models.
  • Does not remove all impurities.

Perfect For:

This Suifl 4 Stage Cooler Filter Replacement Kit is perfect for anyone who wants clean and safe water. It’s easy to use and fits many Brio cooler models, so you can enjoy fresh water with no hassle.

Ready to Purchase?

6. IPW Industries Universal 4-Stage Under Sink Reverse Osmosis Replacement Filter Kit | Replace Every 6-12 Months for Pure, Refreshing Water

IPW Industries Universal 4-Stage Under Sink Reverse Osmosis Replacement Filter Kit | Replace Every 6-12 Months for Pure, Refreshing Water

Upgrade your water today with the IPW Industries Universal 4-Stage Under Sink Reverse Osmosis Replacement Filter Kit. It removes impurities for pure, healthy water your family will love.

These filters last up to 12 months, so you get consistent clean water without frequent changes. Just grab the plastic spindle to swap them easily and keep maintenance simple.

The kit uses premium filtration technology with a high-density membrane for top results. It fits most standard 4-stage systems, such as iSpring and Watts. Enjoy clean water with peace of mind.

Pros Cons
  • Pure water you can trust every sip.
  • Easy change filters in seconds.
  • Lasts long for up to one year.
  • Fits most top water systems.
  • Removes bad stuff like dirt and rust.
  • Requires regular filter replacement every 6-12 months.
  • May not remove all types of contaminants.

Perfect For:

This reverse osmosis replacement filter kit is perfect for homeowners who want to upgrade their under-sink water systems for fresh, clean drinking water. It’s ideal for families seeking a simple way to block impurities and enjoy safe water every day.

Ready to Purchase?

7. IPW Industries Inc PureT RO450-905EZ Compatible 4 Stage Reverse Osmosis Replacement Filter Bundle (50 GPD, Universal)

IPW Industries Inc PureT RO450-905EZ Compatible 4 Stage Reverse Osmosis Replacement Filter Bundle (50 GPD, Universal)

PureT RO450-905EZ is a 4-stage reverse osmosis filter bundle that delivers clean water every time. It includes a sediment filter, carbon block filter, RO membrane, and inline filter to remove contaminants. This bundle fits many 50 GPD systems for easy upgrades.

Replace filters every 6 to 12 months to keep your system working well. The RO membrane lasts 2 to 3 years with proper care.

IPW Industries has over 17 years in the business with top customer support. Enjoy better-tasting water free from sediment and chlorine.

Pros Cons
  • Removes harmful contaminants and bad tastes from water.
  • Provides clean water using 4 stages of filtration.
  • Lasts long with simple replacement every 6-12 months.
  • Fits many reverse osmosis systems easily.
  • Protects your home appliances from damage.
  • Frequent filter changes needed every 6 to 12 months.
  • High water waste during setup and use.
  • Costly long-term due to membrane replacements.

Perfect For:

This reverse osmosis filter bundle is perfect for homeowners who need to keep their PureT RO450-905EZ or other 50 GPD reverse osmosis systems running smoothly. It helps anyone with these setups swap out old filters for clean, safe water in their home.

Ready to Purchase?

8. Drieaz F581 4 Pro Four- Stage Air Filter for DrizAir 1200/LGR 7000XLi Dehumidifier, Gray, Pack of 24

Drieaz F581 4 Pro Four- Stage Air Filter for DrizAir 1200/LGR 7000XLi Dehumidifier, Gray, Pack of 24

Keep your dehumidifier running smooth. This filter fits the DrizAir 1200 and LGR 7000XLi models. It has a strong aluminum frame that lasts.

Grab a pack of 24 today. Replace filters when they look dirty.

Block big dust with the cellulose mesh. Catch small bits with the electrostatic layer. Trap smells using the activated carbon.

Pros Cons
  • Efficiently works with Dri-Eaz dehumidifiers.
  • Protects your working environment from particles.
  • Has a sturdy frame that resists collapse.
  • Uses four unique layers for filtration.
  • Absorbs unwanted odors and fumes.
  • Not reusable—must replace once dirty.
  • Specific fit—only for certain dehumidifiers.
  • Frequent changes needed for best performance.

Perfect For:

This four-stage air filter is perfect for professionals in restoration, remediation, and construction who use the Dri-Eaz DrizAir 1200 or LGR 7000XLi dehumidifiers.
It helps keep the air clean and the equipment working well in tough job sites.

Ready to Purchase?

9. American Filter Company® Model AFC-B4-RO-CMBPK 4-Stage Reverse Osmosis Water Filters Replacement Kit Compatible with Brio MIMQ50GPD, MICARQ5M, CLPOUROSC420RO, CLPOURO420SCV2 4Pk

American Filter Company® Model AFC-B4-RO-CMBPK 4-Stage Reverse Osmosis Water Filters Replacement Kit Compatible with Brio MIMQ50GPD, MICARQ5M, CLPOUROSC420RO, CLPOURO420SCV2 4Pk

Upgrade your water with the American Filter Company® AFC-B4-RO-CMBPK. This 4-stage replacement kit uses top-quality coconut carbon blocks from the USA. It saves money compared to bottled water and helps the planet.

These filters fit many systems like Brio MIMQ50GPD. You can install them easily at home.

Enjoy fresh-tasting water free of bad smells and chlorine. This kit keeps your tap water clean and safe. Try it today for pure refreshment.

Pros Cons
  • Premium quality carbon blocks sourced from the USA.
  • Save money by replacing filters instead of buying bottled water.
  • Reduce waste with eco-friendly choice that cuts plastic use.
  • Easy install for simple access to clean, safe water.
  • Improve taste by cutting chlorine and bad odors.
  • Needs regular changes to stay effective.
  • Won’t remove every bad thing from water.
  • Costs more up front than some options.

Perfect For:

This replacement kit is perfect for homeowners who depend on reverse osmosis systems like the Brio MIMQ50GPD or similar models, ensuring they keep enjoying pure, great-tasting water without the hassle of buying bottled options. Eco-conscious families will love how it cuts down on plastic waste while keeping costs low and maintenance easy.

Ready to Purchase?

10. Watts Premier RO Pure Plus 4-Pack Filtration Kit for 4 Stage Pure Plus/Zero Pure Plus Reverse Osmosis System, Push Button Water Filter Replacement, Sediment Filter, Carbon Pre-Filter, VOC, Membrane

Watts Premier RO Pure Plus 4-Pack Filtration Kit for 4 Stage Pure Plus/Zero Pure Plus Reverse Osmosis System, Push Button Water Filter Replacement, Sediment Filter, Carbon Pre-Filter, VOC, Membrane

Enjoy crystal clear water every day with the Watts Premier RO Pure Plus 4-Pack Filtration Kit. It removes dirt, odors, and harmful stuff from your tap water for a better drink.

This kit has four filters that work together to clean water deeply. You get a sediment filter for dust, a carbon filter for chlorine, a VOC filter for chemicals, and a membrane for toxins.

The filters have colors for easy spotting. Push a button to change them—no tools needed. Change the filters on time to keep the system working great.

Pros Cons
  • Complete kit provides clean and great-tasting water.
  • Easy push-button design makes filter changes simple.
  • Different colored filters make it easy to identify.
  • High-quality materials ensure maximum filtration.
  • Removes harmful contaminants for healthier water.
  • Frequent filter changes required
  • Only fits specific systems
  • Membrane replacement every 2-5 years

Perfect For:

This water filter kit is perfect for homeowners with a reverse osmosis system who want clean, great-tasting water. It suits those needing to remove dirt, chlorine, and harmful chemicals from their tap water.

Ready to Purchase?

Buying Guide

Clean water is key to good health. You need a great filter.

I used to buy bottled water every week. Then, I found a four stage filter. The tap water tastes much better now!

Choose the best four stage filter with these factors:

  • Compatibility: Does this filter fit your system? Read what systems work with the filter. Look at the model numbers.

  • Filter Life: How long will the filter last? Some last 6 months. Others can go for a year.

  • Filtration Quality: What does the filter remove? Look for NSF certification. This means it was tested. It should remove dirt and bad smells.

  • Ease of Installation: How easy is it to change the filter? Some are easy to snap in. You should not need tools.

  • Customer Support: Does the company have good support? Can you easily ask questions? This can help later for setup.

  • Price: What is the price of the replacement kit? Check cost over time. The cheaper one may not last as long.