Looking for the best Big Blue filter replacements? We’ve tested and compared the top 10 options to help you find the perfect fit for clean, great-tasting water.
Big Blue filter replacements are essential for keeping your water clean and safe. These filters remove dirt, sand, and other particles, ensuring your appliances work well. Choosing the right one can make a big difference in your home.
High-quality filters like Pentair Pentek offer dual-gradient designs and NSF certification. They fit standard housings and last longer, saving you time and money. You’ll notice cleaner, fresher water right away.
We’ve tested and compared the best Big Blue filter replacements for you. This guide will help you find the perfect fit for your needs. Get ready to enjoy pure, great-tasting water with ease.
List of Top 10 Big Blue Filter Replacements
| Image | Title | Best For | Price |
|---|---|---|---|
![]() |
BLUEAIR Blue Signature Large Genuine Replacement Filter for Large Model Air Purifier, Patent-Pending Air Purifier Filter, Removes Pollen, Dust, Smoke, Pet Hair & Odors |
This Blueair Blue Signature Large Genuine Replacement Filter is perfect for anyone who wants cleaner, healthier air in their home. It’s ideal for pet owners, allergy sufferers, or anyone dealing with dust, smoke, or odors. |
|
![]() |
Pentair Pentek DGD-5005-20 Big Blue Water Filter, 20-Inch Whole House Sediment Filter Cartridge Replacement, Dual-Gradient Density Spun Polypropylene, 20″ x 4.5″, 5 Micron, Pack of 1, White |
This Pentair Pentek DGD-5005-20 filter is perfect for homeowners who want clean, clear water and to protect their appliances. It’s ideal for high-flow systems and fits all 20-inch Big Blue housings. |
|
![]() |
Pentair Pentek DGD-5005 Big Blue Water Filter, 10-Inch Whole House Sediment Filter Cartridge Replacement, Dual-Gradient Density Spun Polypropylene, 10″ x 4.5″, 5 Micron, Pack of 1 |
This Pentair Pentek DGD-5005 filter is perfect for homeowners who want clean, clear water and to protect their appliances. It’s ideal for anyone with a 10-inch Big Blue filter housing looking for a reliable, high-flow pre-filter. |
|
![]() |
Pentair Pentek EPM-20BB Big Blue Carbon Water Filter, 20-Inch, Whole House Modified Epsilon Carbon Block Replacement Cartridge with Bonded Powdered Activated Carbon (PAC) Filter, 20″ x 4.5″, 10 Micron |
This Pentair Pentek EPM-20BB filter is perfect for homeowners who want clean, fresh-tasting water throughout their house. It’s easy to install and fits most 20-inch systems, making it a great choice for anyone looking to reduce chlorine and improve water quality without hassle. |
|
![]() |
Pentair Pentek DGD-5005 Big Blue Water Filter, 10-Inch Whole House Sediment Filter Cartridge Replacement, Dual-Gradient Density Spun Polypropylene, 10″ x 4.5″, 5 Micron, Pack of 2 |
This Pentair Pentek DGD-5005 filter is perfect for homeowners who want clean, clear water and to protect their appliances. It’s ideal for anyone with a 10-inch Big Blue filter system looking for reliable, high-flow filtration. |
|
![]() |
Pentair Pentek GAC-BB Big Blue Carbon Water Filter, 10-Inch, Whole House Heavy Duty Granular Activated Carbon (GAC) Replacement Cartridge, 10″ x 4.5″ |
This Pentair Pentek GAC-BB Carbon Water Filter is perfect for anyone who wants clean, fresh-tasting water in their whole house. It’s easy to install and fits most 10-inch filter housings, making it ideal for families or busy households. |
|
![]() |
Pentair Pentek R50-BB Big Blue Sediment Water Filter, 10-Inch, Whole House Pleated Polyester Filter Cartridge, 10″ x 4.5″, 50 Micron |
This Pentair Pentek R50-BB filter is perfect for homeowners who want clean water and long-lasting appliances. It’s easy to use and fits most systems, making it ideal for anyone looking to protect their home with reliable filtration. |
|
![]() |
Pentair Pentek EP-20BB Big Blue Carbon Water Filter, 20-Inch, Whole House Carbon Block Replacement Cartridge with Bonded Powdered Activated Carbon (PAC) Filter, 20″ x 4.5″, 5 |
This Pentair Pentek EP-20BB filter is perfect for anyone who wants clean, fresh-tasting water in their whole house. It’s easy to install and lasts a long time, making it ideal for busy families or anyone who values convenience. |
|
![]() |
Pentair Pentek 150233 Big Blue Filter Housing, 1″ NPT #20 Whole House Heavy Duty Water Filter Housing with High-Flow Polypropylene (HFPP) Cap and Pressure Relief Button, 20-Inch, Black/Blue |
This Pentair Pentek 150233 Big Blue Filter Housing is perfect for homeowners who want a reliable, heavy-duty water filter system. It’s ideal for high-flow applications, like large households or businesses, where clean water is a must. |
|
![]() |
BLUEAIR Classic 500/600 Genuine Particle Replacement Filter; fits 680i, 501, 503, 505, 510, 550E, 555EB, 601, 605, 650E |
This Blueair Classic 500/600 Genuine Particle Replacement Filter is perfect for anyone who wants clean, fresh air at home. It’s ideal for pet owners, allergy sufferers, or families looking to reduce dust, pollen, and pet dander. |
Detailed Reviews
Discover the top 10 Big Blue Filter Replacements carefully selected for performance, value, and reliability. Each product is expert-reviewed and backed by customer feedback, ensuring you get the best fit for your needs. Whether you prioritize clean water, longevity, or affordability, this guide has you covered. Dive in to find the perfect filter and enjoy cleaner, fresher water with ease.
1. BLUEAIR Blue Signature Large Genuine Replacement Filter for Large Model Air Purifier, Patent-Pending Air Purifier Filter, Removes Pollen, Dust, Smoke, Pet Hair & Odors

The BLUEAIR Blue Signature Large Genuine Replacement Filter is designed for the SP4i air purifier. It ensures a perfect fit and peak performance every time you change it. This filter is patent-pending, making it unique and reliable.
It captures 99.97% of tiny particles like pollen, dust, and smoke. The HEPASilent technology works fast, quiet, and energy-efficient. It also removes 10x more odors with OdorFence Technology.
The filter lasts up to 12 months, thanks to its patent-pending design. It’s easy to replace with no tools needed. Enjoy cleaner air with stress-free maintenance.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This Blueair Blue Signature Large Genuine Replacement Filter is perfect for anyone who wants cleaner, healthier air in their home. It’s ideal for pet owners, allergy sufferers, or anyone dealing with dust, smoke, or odors.
Ready to Purchase?
- Best PUR Water Filters
- Best High-Flow Pre-Filters: Boost Performance & Protect Gear
- Best Dual-Gradient Density Filters: Pure Water for Your Home
- Best Whole House Sediment Filters
- Best Water Filters For Dispensers
- Best Water Filters For Impurities
- Best Brita Standard Water Filter
- Best Water Filters For Reducing Impurities
2. Pentair Pentek DGD-5005-20 Big Blue Water Filter, 20-Inch Whole House Sediment Filter Cartridge Replacement, Dual-Gradient Density Spun Polypropylene, 20″ x 4.5″, 5 Micron, Pack of 1, White

The Pentair Pentek DGD-5005-20 keeps your water clean and safe. It removes dirt, sand, and silt from your water. This filter protects your appliances and ensures pure water.
Its dual-gradient design traps more dirt than other filters. It fits all 20-inch Big Blue housings easily. This filter is NSF certified for quality and safety.
Replace it every 6 months for best results. It works well with high water flow. Enjoy clean, fresh water with this reliable filter.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This Pentair Pentek DGD-5005-20 filter is perfect for homeowners who want clean, clear water and to protect their appliances. It’s ideal for high-flow systems and fits all 20-inch Big Blue housings.
Ready to Purchase?
3. Pentair Pentek DGD-5005 Big Blue Water Filter, 10-Inch Whole House Sediment Filter Cartridge Replacement, Dual-Gradient Density Spun Polypropylene, 10″ x 4.5″, 5 Micron, Pack of 1

The Pentair Pentek DGD-5005 keeps your water clean and protects appliances. It removes dirt, sand, silt, and particles without adding taste, odor, or color. This 10-inch whole house filter is perfect for high-flow systems.
Its dual-gradient density design traps more dirt than standard filters. It holds 3X more particles, ensuring longer-lasting performance. NSF-certified, it’s made with 100% pure polypropylene for safety.
Use it in 10-inch Big Blue housings or similar setups. Replace it every 6 months or when water pressure drops for best results.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This Pentair Pentek DGD-5005 filter is perfect for homeowners who want clean, clear water and to protect their appliances. It’s ideal for anyone with a 10-inch Big Blue filter housing looking for a reliable, high-flow pre-filter.
Ready to Purchase?
4. Pentair Pentek EPM-20BB Big Blue Carbon Water Filter, 20-Inch, Whole House Modified Epsilon Carbon Block Replacement Cartridge with Bonded Powdered Activated Carbon (PAC) Filter, 20″ x 4.5″, 10 Micron

The Pentair Pentek EPM-20BB is a whole house water filter designed for clean, fresh water. It reduces chlorine, taste, and odor while filtering sediment. This 20-inch cartridge fits most standard housings.
Its high porosity design prevents clogging and maintains water flow. It’s NSF certified, ensuring safety and quality. Replace it every 6 months or when water pressure drops.
With a 30,000-gallon capacity, it’s an economical choice. It works in all 20″ Big Blue Housings and heavy-duty systems. Enjoy peace of mind with clean, great-tasting water.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This Pentair Pentek EPM-20BB filter is perfect for homeowners who want clean, fresh-tasting water throughout their house. It’s easy to install and fits most 20-inch systems, making it a great choice for anyone looking to reduce chlorine and improve water quality without hassle.
Ready to Purchase?
5. Pentair Pentek DGD-5005 Big Blue Water Filter, 10-Inch Whole House Sediment Filter Cartridge Replacement, Dual-Gradient Density Spun Polypropylene, 10″ x 4.5″, 5 Micron, Pack of 2

The Pentair Pentek DGD-5005 is a 10-inch whole house sediment filter cartridge. It comes in a pack of 2 for easy replacement. This filter keeps your water clean and clear.
It uses dual-gradient density spun polypropylene to trap dirt, sand, and silt. This design gives it 3X more dirt-holding capacity than similar filters. It’s perfect for high-flow systems.
This filter is NSF certified and fits all 10-inch Big Blue housings. Replace it every 6 months for the best results. It protects your appliances and ensures pure, tasteless water.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This Pentair Pentek DGD-5005 filter is perfect for homeowners who want clean, clear water and to protect their appliances. It’s ideal for anyone with a 10-inch Big Blue filter system looking for reliable, high-flow filtration.
Ready to Purchase?
6. Pentair Pentek GAC-BB Big Blue Carbon Water Filter, 10-Inch, Whole House Heavy Duty Granular Activated Carbon (GAC) Replacement Cartridge, 10″ x 4.5″

The Pentair Pentek GAC-BB is a whole house water filter designed to improve your water quality. It reduces bad tastes and odors, making your drinking water better. This 10-inch cartridge fits most standard housings easily.
It works with all 10″ Pentair Pentek Big Blue housings and replaces any 10″ x 4.5″ carbon filter. A post-filter helps remove tiny particles, ensuring clean water.
This filter lasts up to 12,500 gallons and is NSF certified for safety. Replace it every three months or when water flow slows. Enjoy clean, fresh water with this heavy-duty solution.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This Pentair Pentek GAC-BB Carbon Water Filter is perfect for anyone who wants clean, fresh-tasting water in their whole house. It’s easy to install and fits most 10-inch filter housings, making it ideal for families or busy households.
Ready to Purchase?
7. Pentair Pentek R50-BB Big Blue Sediment Water Filter, 10-Inch, Whole House Pleated Polyester Filter Cartridge, 10″ x 4.5″, 50 Micron

The Pentair Pentek R50-BB is a whole house water filter that keeps your water clean. It removes dirt, sand, silt, and tiny particles to protect your appliances.
This 10-inch filter fits all Big Blue Housings and is reusable. It lasts longer and saves you money over time.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This Pentair Pentek R50-BB filter is perfect for homeowners who want clean water and long-lasting appliances. It’s easy to use and fits most systems, making it ideal for anyone looking to protect their home with reliable filtration.
Ready to Purchase?
8. Pentair Pentek EP-20BB Big Blue Carbon Water Filter, 20-Inch, Whole House Carbon Block Replacement Cartridge with Bonded Powdered Activated Carbon (PAC) Filter, 20″ x 4.5″, 5

The Pentair Pentek EP-20BB is a whole house carbon block replacement cartridge. It fits all 20″ Big Blue housings and works with any 20″ x 4.5″ filter.
This filter reduces chlorine taste and odor better than many others. It has a high porosity design to last longer. NSF certified for safety and quality.
With a 44,000-gallon capacity, it lasts up to one year. Replace it when water pressure drops or quality changes.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This Pentair Pentek EP-20BB filter is perfect for anyone who wants clean, fresh-tasting water in their whole house. It’s easy to install and lasts a long time, making it ideal for busy families or anyone who values convenience.
Ready to Purchase?
9. Pentair Pentek 150233 Big Blue Filter Housing, 1″ NPT #20 Whole House Heavy Duty Water Filter Housing with High-Flow Polypropylene (HFPP) Cap and Pressure Relief Button, 20-Inch, Black/Blue

The Pentair Pentek 150233 Big Blue Filter Housing is a heavy-duty water filter housing designed for whole-house use. It fits 20-inch cartridges and works with high flow rates.
This housing is extra large, allowing for greater cartridge capacity. It reduces the number of vessels needed for high-flow applications. The 1-inch NPT ports ensure easy installation.
It comes with a high-flow polypropylene cap and a pressure relief button. Mounting hardware and wrench are not included. The black and blue design is durable and stylish.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This Pentair Pentek 150233 Big Blue Filter Housing is perfect for homeowners who want a reliable, heavy-duty water filter system. It’s ideal for high-flow applications, like large households or businesses, where clean water is a must.
Ready to Purchase?
10. BLUEAIR Classic 500/600 Genuine Particle Replacement Filter; fits 680i, 501, 503, 505, 510, 550E, 555EB, 601, 605, 650E

The BLUEAIR Classic 500/600 Genuine Particle Replacement Filter keeps your air clean. It fits many Blueair Classic models, like the 501, 503, and 605. Use genuine filters for the best results.
This particle filter removes pollen, dust, and pet dander. It also traps mold spores, viruses, and bacteria. Keep your air fresh and healthy.
Change the filter every 6 months or as needed. Its low-density design saves energy. Enjoy cleaner air without high costs.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This Blueair Classic 500/600 Genuine Particle Replacement Filter is perfect for anyone who wants clean, fresh air at home. It’s ideal for pet owners, allergy sufferers, or families looking to reduce dust, pollen, and pet dander.
Ready to Purchase?
Buying Guide
Big Blue filter replacements keep your water clean and safe. Choosing the right one makes a big difference for your home.
Factors to Consider When Buying:
– Filter Type: Pick a sediment filter for dirt and sand or a carbon filter for taste and odor.
– Size: Ensure it fits your housing (e.g., 10-inch or 20-inch).
– Micron Rating: Lower numbers (like 5 micron) catch smaller particles.
– NSF Certification: Look for this to ensure safety and quality.
– Capacity: Check how long it lasts (e.g., 30,000 gallons).
– Flow Rate: Choose one that works with your water system’s flow.
– Replacement Frequency: Some last 6 months, others 12 months.
– Brand Reliability: Trusted brands like Pentair Pentek offer durability and performance.
Enjoy clean, fresh water with the perfect filter for your needs.