What are the best 6-month supply water filter replacements?
I’m offering a straightforward guide to help you discover top-rated filters that deliver pure, safe water effortlessly at home.
Clean water at home means using the right replacement filters. Many people choose 6-month supply sets for ease. These keep your water pure and safe without much work.
Good filters last a long time. They save money on bottled water. Pick the best ones for your RO system or pitcher.
One user said, “After trying the iSpring F6K75 set, my coffee tastes amazing. I no longer worry about chlorine in my drinks.” Such stories show how these filters change daily life. As your guide, I have tested top products to find the perfect fit for home water needs. You will learn which filter matches your setup best. Keep reading to see how simple changes bring big wins.
List of Top 10 6-Month Supply Water Filter Replacements
| Image | Title | Best For | Price |
|---|---|---|---|
 |
iSpring F3 NSF Certified 6-Month Prefilter Replacement Water Filter Cartridge Pack Set for Standard Reverse Osmosis RO Systems |
This product is perfect for anyone who wants clean, safe, and good-tasting water. If you have a standard reverse osmosis system and need easy-to-replace filters every six months, this set is ideal. It’s simple to install, reliable, and helps keep your water pure and fresh. |
|
 |
iSpring F6K75 NSF Certified Replacement Under-Sink Water Filters, 6-Stage Reverse Osmosis RO Water Filtration Systems with Alkaline Mineral Filter, 6-months Replacement Supply Set, 6 Count (Pack of 1) |
This product is perfect for families and individuals who use under-sink RO water systems and need easy-to-replace filters that provide clean, mineral-balanced water. It’s ideal for health-conscious people who want their drinking and cooking water to taste great without worrying about pollutants. |
|
 |
Amazon Basics Enhanced Replacement Water Filters for Water Pitchers, BPA-Free, WQA & NSF Certified, Compatible with Brita Water Pitchers & Drinking Water Filter Systems, 6 Month Filter Supply, 3-Pack |
This product is perfect for eco-friendly families, students, and anyone who wants to cut down on plastic waste while enjoying clean, great-tasting water at home or in a small space. |
|
 |
PUR Plus Water Filter Replacement for Pitchers & Dispensers, 6-Month Supply, 3 Count, Blue (PPF951K3) |
This PUR Plus Water Filter is perfect for families and busy people who want clean, safe drinking water at home without the hassle of bottles. It saves money and gives better taste, so you can enjoy pure water every day with ease. |
|
 |
iSpring F3-NC 6-Month Prefilter Replacement Supply Filter Cartridge Pack Set for US31-NC, Pack of 1 |
This replacement cartridge pack is perfect for anyone who owns the US31-NC under-sink water filtration system and needs fresh filters to keep their water clean and safe. It fits easily and helps remove up to 99.4% of chloramine while keeping minerals in your water. |
|
 |
iSpring F3CTO 10-inch Universal Replacement Set Cartridges for Reverse Osmosis and 3-Stage Water Filtration Systems Sediment, 2 x Carbon Block Filters, 1 Count (Pack of 1), White |
This iSpring F3CTO replacement filter set is perfect for homeowners with 10-inch RO systems who need reliable, 6-month filters to keep their water clean. It fits most standard housings, including the iSpring US31, making it easy for busy families to maintain pure drinking water at home. |
|
 |
iSpring F4DS 6-12 Months Replacement Supply Filter Cartridge Pack Set for DS4B & DS4S Bottleless Water Dispensers, Includes 1x FPDS, 1x FGKDS, 1x FCDS, 1x FTDS |
This replacement filter pack is perfect for anyone who owns an iSpring DS4B or DS4S bottleless water dispenser and wants to keep their water clean and fresh. It suits busy homes or offices that need easy-to-install filters for better taste without high upkeep. |
|
 |
APEC Water Systems FILTER-SET-ES High Capacity Replacement Pre-Filter Set For Essence Series Reverse Osmosis Water Filter System Stage 1-3 |
This replacement filter set is perfect for homeowners who own an APEC Essence Series RO system like the ROES-50, ROES-PH75, or ROES-UV75. It’s also great for anyone with a standard under counter reverse osmosis water filter who wants clean, tasty water by swapping out old filters. |
|
 |
Reverse Osmosis Alkaline pH+ Water Filter Set | 6 Replacement Water Filters with 100 GDP Membrane | 6 Month Supply | Under Sink RO Water Filter | PP, GAC, CTO, ROM, PC, ALK | Universal 10 Inch Size |
This reverse osmosis water filter set is perfect for families who want pure, healthy water right from their kitchen sink. It suits anyone concerned about contaminants in tap water and seeking great-tasting drinks every day. |
|
 |
EcoPure EPW2F Premium Fact Universal Whole Home Filter (2 Pack), Dark Gray/Black |
This whole home water filter is perfect for families who want clean, fresh water from every tap in their home. It’s great for homeowners with municipal or well water supplies tired of chlorine taste and dirt. |
Detailed Reviews
Discover the top-rated 6-month water filter supplies picked by experts using customer reviews for lasting clean water. These replacements remove harmful stuff like chlorine and dirt in your system. Save money and time with easy installs that fit most home setups. Read on to find the perfect match for your fresh drinking needs.
1. iSpring F3 NSF Certified 6-Month Prefilter Replacement Water Filter Cartridge Pack Set for Standard Reverse Osmosis RO Systems
Upgrade your water with this iSpring F3 prefilter pack. It works with most standard RO systems for clean, safe water.
Each pack has three 10-inch filters: one sediment filter, one granular activated carbon filter, and one carbon block filter. These replace old filters every six months.
It does not come with the RO membrane. Call us if you need help with setup.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This product is perfect for anyone who wants clean, safe, and good-tasting water. If you have a standard reverse osmosis system and need easy-to-replace filters every six months, this set is ideal. It’s simple to install, reliable, and helps keep your water pure and fresh.
Ready to Purchase?
- 10 Best Value Pack: Save Big on Everyday Essentials
- 10 Best 3 Pack Water Filter Supply for Pure Drinking Water
- 10 Best Water Filters for Cost Savings: Pure Water, Pure Savings
- 10 Best 3 Pack Water Filter Cartridges: Top Picks for Pure Water
- 10 Best 6 Month Replacement Value: Top Picks for Home Essentials
- 10 Best Filter Life 15 Gallons: Crystal Clear Water
- 10 Best 6-Month Filter Value – Fresh Water, Big Savings
- 10 Best 6-Month Faucet Filter: Clean Water Made Easy
2. iSpring F6K75 NSF Certified Replacement Under-Sink Water Filters, 6-Stage Reverse Osmosis RO Water Filtration Systems with Alkaline Mineral Filter, 6-months Replacement Supply Set, 6 Count (Pack of 1)
Get pure water at home with this iSpring F6K75 filter set. It replaces filters for your 6-stage RO system every six months. Each set has six wrapped filters ready to use.
Enjoy fresh ice, great coffee, and safe baby formula. The system adds back healthy minerals for better taste.
These filters remove bad stuff like contaminants up to 97%. They fit fast with a push connection. Ask for help if you need it.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This product is perfect for families and individuals who use under-sink RO water systems and need easy-to-replace filters that provide clean, mineral-balanced water. It’s ideal for health-conscious people who want their drinking and cooking water to taste great without worrying about pollutants.
Ready to Purchase?
3. Amazon Basics Enhanced Replacement Water Filters for Water Pitchers, BPA-Free, WQA & NSF Certified, Compatible with Brita Water Pitchers & Drinking Water Filter Systems, 6 Month Filter Supply, 3-Pack
These Amazon Basics replacement water filters fit most Brita pitchers and dispensers, except the Brita Stream. They help you reduce waste by replacing 300 single-use plastic bottles with each cartridge.
The filters are WQA certified to remove 9 harmful contaminants, including chlorine taste and metals like mercury in your water. Each one lasts for 40 gallons or two months, giving you fresh, great-tasting water. You get three filters in a pack for clean, BPA-free hydration.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This product is perfect for eco-friendly families, students, and anyone who wants to cut down on plastic waste while enjoying clean, great-tasting water at home or in a small space.
Ready to Purchase?
4. PUR Plus Water Filter Replacement for Pitchers & Dispensers, 6-Month Supply, 3 Count, Blue (PPF951K3)
Clean water starts here. Get the PUR Plus Water Filter Replacement for your pitcher or dispenser. It cuts down on lead and other bad stuff in your tap water.
This set gives you 3 filters for a 6-month supply. Each one lasts for 40 gallons or 2 months of use.
Taste the difference in every sip. It removes microplastics, chlorine, and odors that make water gross. Save up to $75 per month by skipping bottled water.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This PUR Plus Water Filter is perfect for families and busy people who want clean, safe drinking water at home without the hassle of bottles. It saves money and gives better taste, so you can enjoy pure water every day with ease.
Ready to Purchase?
5. iSpring F3-NC 6-Month Prefilter Replacement Supply Filter Cartridge Pack Set for US31-NC, Pack of 1
This high-capacity prefilter pack keeps your iSpring US31-NC system running great. It includes 3 easy-to-install filters that last up to six months. Unwrap them before you use them for best results.
These catalytic carbon filters remove up to 99.4% of chloramine from your water. They keep healthy minerals in your water without cutting down on total dissolved solids.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This replacement cartridge pack is perfect for anyone who owns the US31-NC under-sink water filtration system and needs fresh filters to keep their water clean and safe. It fits easily and helps remove up to 99.4% of chloramine while keeping minerals in your water.
Ready to Purchase?
6. iSpring F3CTO 10-inch Universal Replacement Set Cartridges for Reverse Osmosis and 3-Stage Water Filtration Systems Sediment, 2 x Carbon Block Filters, 1 Count (Pack of 1), White
Upgrade your home water system with the iSpring F3CTO cartridge set. It fits most 10-inch filter housings and RO units with ease. Get pure water that tastes great every day.
This pack gives you a full 6 months of clean filters for your system. It weighs just 2.6 pounds and has easy package size of 16.5 by 26 by 26 inches. Replace old filters now to keep your water fresh and safe.
Order today and enjoy better health from better water. Your family deserves the best drinking experience.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This iSpring F3CTO replacement filter set is perfect for homeowners with 10-inch RO systems who need reliable, 6-month filters to keep their water clean. It fits most standard housings, including the iSpring US31, making it easy for busy families to maintain pure drinking water at home.
Ready to Purchase?
7. iSpring F4DS 6-12 Months Replacement Supply Filter Cartridge Pack Set for DS4B & DS4S Bottleless Water Dispensers, Includes 1x FPDS, 1x FGKDS, 1x FCDS, 1x FTDS
The iSpring F4DS pack includes four replacement filters. These filters remove dust, bad smells, and dirt from your water. They make your water taste much better.
You can install these filters yourself in just a few minutes. Change them every 6 to 12 months based on how much water you use. The filters are durable and will not leak.
We offer a 30-day money-back guarantee. We provide lifetime customer service and support.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This replacement filter pack is perfect for anyone who owns an iSpring DS4B or DS4S bottleless water dispenser and wants to keep their water clean and fresh. It suits busy homes or offices that need easy-to-install filters for better taste without high upkeep.
Ready to Purchase?
8. APEC Water Systems FILTER-SET-ES High Capacity Replacement Pre-Filter Set For Essence Series Reverse Osmosis Water Filter System Stage 1-3
This APEC Water Systems FILTER-SET-ES is a high capacity replacement pre-filter set for the Essence Series Reverse Osmosis Water Filter System Stage 1-3. It fits models like ROES-50, ROES-PH75, and ROES-UV75.
It has one sediment filter and two carbon block filters that protect your RO system and make it last longer. The filters remove dust, particles, rust, chlorine, taste, and odor for clean water. They work with most under counter RO systems.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This replacement filter set is perfect for homeowners who own an APEC Essence Series RO system like the ROES-50, ROES-PH75, or ROES-UV75. It’s also great for anyone with a standard under counter reverse osmosis water filter who wants clean, tasty water by swapping out old filters.
Ready to Purchase?
9. Reverse Osmosis Alkaline pH+ Water Filter Set | 6 Replacement Water Filters with 100 GDP Membrane | 6 Month Supply | Under Sink RO Water Filter | PP, GAC, CTO, ROM, PC, ALK | Universal 10 Inch Size
This Reverse Osmosis Alkaline pH+ Water Filter Set gives you healthy drinking water every time you use it. It removes harmful things from your tap water so you can feel good drinking it at home.
The system has a five-stage filtration process that cleans the water step by step. It uses filters like coconut carbon and alkaline to make sure the water is pure. Then you get water that tastes great and is safe for your family.
These universal 10-inch filters are made to last for six months with high-quality materials. They fit many brands and offer the best value for clean water in your house.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This reverse osmosis water filter set is perfect for families who want pure, healthy water right from their kitchen sink. It suits anyone concerned about contaminants in tap water and seeking great-tasting drinks every day.
Ready to Purchase?
10. EcoPure EPW2F Premium Fact Universal Whole Home Filter (2 Pack), Dark Gray/Black
Upgrade your home’s water with the EcoPure EPW2F filter. It uses patented FACT technology for smoother flow and stronger filtration. This filter cuts out bad tastes, smells, and dirt like never before.
Enjoy clean water from city or well sources. Change the filter every 6 months for top results.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This whole home water filter is perfect for families who want clean, fresh water from every tap in their home. It’s great for homeowners with municipal or well water supplies tired of chlorine taste and dirt.
Ready to Purchase?
Buying Guide
Clean water at home starts with good filters. Many choose sets that last six months. These keep water pure without extra work.
One user shared their story. “After trying the iSpring F6K75 set, my coffee tastes amazing. I no longer worry about chlorine in my drinks.”
-
Compatibility: Pick filters that fit your RO system or pitcher. Check brands like iSpring, Brita, APEC, or PUR. This avoids setup issues.
-
Lifespan: Look for sets that last six months. Change them as needed to keep water safe. Skip filters that wear out fast.
-
Contaminant Removal: Choose filters that cut chlorine, lead, and metals. They should remove dust, odors, and bad tastes. Some add healthy minerals back in.
-
Certification: Get filters with NSF or WQA stamps. These show they meet safe standards. They protect against harmful stuff.
-
Cost and Value: Buy packs that save money on bottled water. Compare prices for long-term use. Aim for sets under $50 that last six months.
-
Ease of Installation: Go for filters with quick push connections. They take minutes to set up. No tools mean less hassle.
-
Water Taste: Seek filters that make water taste better. They boost coffee, tea, or baby formula. Fresh, clean water feels more enjoyable.
-
Capacity: Check how much water each filter handles. Many cover 40 gallons every two months. Full sets give six months of pure supply.
-
Additional Features: Some filters use alkaline or carbon blocks. These add minerals for health. They work with under-sink or pitcher systems.
-
Brand Reputation: Trust names like iSpring for RO systems. Amazon Basics fits Brita pitchers. Read reviews to see what users like.