Advertising Disclosure

5 Best Big Blue Filter Cartridges of 2025

Last Updated - 2025/09/29

1
Best Choice

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Pentek

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 6, White

Pentek

CA$265.67

More Details
Main highlights
- TESTED AND CERTIFIED BY NSF INTERNATIONAL to NSF/ANSI Standard 42 for your peace of mind. Manufactured with 100% pure polypropylene
- SIZED FOR USE IN ALL 20 inch Big Blue filter housings (or other heavy duty filter housings) and can replace any 20 inch x 4.5 inch sediment filter cartridge
- REPLACE EVERY 6 MONTHS or when you notice a drop in water pressure or water quality for best results and performance
- KEEP YOUR WATER CLEAN and protect your appliances by removing dirt, sand, silt and particulates. DGD Big Blue water filter cartridges are designed for purity and will NOT impart taste, odor or color to your water
- IDEAL HIGH-FLOW PRE-FILTER. Filter density increases toward the cartridge's center resulting in superior particulate reduction and 3X the dirt holding capacity of similar size sediment cartridges
CA$265.67
2
Best Value

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Geekpure

Geekpure Replacement Filter 20 Inch Universal Block Carbon Filter Cartridge - Big Size 4.5" x 20" (4 Count)

Geekpure

CA$179.98

More Details
Main highlights
- Size at 4.5" diameter x 20" height,Fits all standard 20" sized whole house water filter housing. Matched filter housings options, please refer ASIN: B095RYPHWY | B095S2R933 | B07GQXM869 | B077BDQGHP | B07FKK6R2H via Amazon
- Pack of 4 filters in the box
- Made of 100% high quality coconut activated carbon ,5 Micron
- It is Installed at the main water supply and produce pure water for your entire home. Enjoy better water from every tap and every appliance in the whole house.Flow rate : 5-15 GPM (Depend on Feed Water Pressure).Some items inventory mixed, if you receive wrong item,please get back to seller,we will do our best to support you
- Carbon block filter is used to remove chlorine, taste & odors, very fine particulates. life time:6-12 months or 100K gallons (Depends on Usage Amount and Feed Water Quality) ,these can be used for residential and commercial applications
- All Filters are individually wrapped&sealed and extend shelf life
CA$179.98
3

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Pentek

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 2), White

Pentek

CA$107.21

More Details
Main highlights
- TESTED AND CERTIFIED BY NSF INTERNATIONAL to NSF/ANSI Standard 42 for your peace of mind. Manufactured with 100% pure polypropylene
- SIZED FOR USE IN ALL 20 inch Big Blue filter housings (or other heavy duty filter housings) and can replace any 20 inch x 4.5 inch sediment filter cartridge
- REPLACE EVERY 6 MONTHS or when you notice a drop in water pressure or water quality for best results and performance
- KEEP YOUR WATER CLEAN and protect your appliances by removing dirt, sand, silt and particulates. DGD Big Blue water filter cartridges are designed for purity and will NOT impart taste, odor or color to your water
- IDEAL HIGH-FLOW PRE-FILTER. Filter density increases toward the cartridge's center resulting in superior particulate reduction and 3X the dirt holding capacity of similar size sediment cartridges
CA$107.21
4

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Geekpure

Geekpure Replacement 10 Inch Universal Filter Cartridge - Big Size 4.5" x 10" Filter 4 Count (CTO-10BX4)

Geekpure

CA$89.98

More Details
Main highlights
- PURE-It is Installed at the main water supply and produce pure water for your entire home. Enjoy better water from every tap and every appliance in the whole house.Some items inventory mixed, if you receive wrong item,please get back to seller ,we will do our best to support you
- Made of high quality coconut activated carbon,Pack of 4 filters in the box.5 Micron
- Large capacity for high flow applications,Flow rate : 5-15 GPM (Depend on Feed Water Pressure).Please flush new filters 15 minutes
- Fits standard 10" big sized whole house water filter housing, size at 4.5" diameter x 10" height
- Carbon block filter is used to reducechlorine,iron,color, taste & odors . life time:6-12 months or 100K gallons (Depends on Usage Amount and Feed Water Quality)
CA$89.98
5

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Aquaboon

Aquaboon 5 Micron 20 x 4.5 Activated Carbon Block Filter Cartridge for Whole House Water Filter Replacement Compatible with FC25B, EP-20BB, 2-Pack

Aquaboon

CA$114.79

More Details
Main highlights
- Universal Compatibility: Our carbon block water filter fits most standard 20-inch water filter housings, making it compatible with whole house filter setups and under sink water filter replacement. Its versatile design offers great flexibility.
- Effortless Home Water Filter Replacement: Simplify maintenance with our 20 x 4.5 water filter, designed for quick and easy installation. This carbon water filter cartridge ensures effortless performance without frequent filter replacements.
- Aquaboon Water Filters Ensure No Pressure Worries: Enjoy uninterrupted water flow with our’s 5 micron water filter. It maintains a steady water flow without pressure drops, ensuring your whole home water filter system operates smoothly and efficiently.
- Advanced 5-Micron Filtration: A precision-engineered 5 micron water filter 20 x 4.5 that captures chlorine, odors, chemicals and tiny particles. Carbon water filter ensures your water is out of contaminants, delivering superior quality and taste.
- Activated Carbon for Superior Filtration: Our 20-inch water filter utilizes coconut shell activated carbon to effectively reduce chlorine, odors and harmful chemicals. Experience clean filtered water throughout your whole house water filter system.
CA$114.79

5 Best Big Blue Filter Cartridges of 2025

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 6, White

Geekpure Replacement Filter 20 Inch Universal Block Carbon Filter Cartridge - Big Size 4.5" x 20" (4 Count)

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 2), White

Geekpure Replacement 10 Inch Universal Filter Cartridge - Big Size 4.5" x 10" Filter 4 Count (CTO-10BX4)

Aquaboon 5 Micron 20 x 4.5 Activated Carbon Block Filter Cartridge for Whole House Water Filter Replacement Compatible with FC25B, EP-20BB, 2-Pack

You may also like...

Pentair Pentek DGD-2501-20 Big Blue Water Filter, 20-Inch Whole House Sediment Filter Cartridge Replacement, Dual-Gradient Density Spun Polypropylene, 20" x 4.5", 1 Micron, Pack of 2, White

Geekpure Replacement Filter 20 Inch Universal Block Carbon Filter Cartridge - Big Size 4.5" x 20"

1 Big Blue CTO Carbon Block & 1 Sediment Water Filters 4.5" x 20" Cartridges Set (2 Filters)

Geekpure Replacement Filter 10 Inch Block Carbon and PP Sediment Filter Cartridge - Big Size 4.5" x 10" (4 Count)

Pentair Pentek DGD-7525-20 Big Blue Water Filter, 20-Inch Whole House Sediment Filter Cartridge Replacement, Dual-Gradient Density Spun Polypropylene, 20" x 4.5", 25 Micron, Pack of 2, White

PUREPLUS 5 Micron 10" x 4.5" FXHTC Whole House Big Blue Sediment and Carbon Water Filter Replacement Cartridge for GE GXWH40L, GXWH35F, GNWH38S, Culligan RFC-BBSA, WRC25HD, RFC-BB, PP10BB-CC,3Pack

Aquaboon 5 Micron Well Water Filter Replacement 20 x 4.5 Whole House Sediment Filter Cartridge Compatible with DGD-5005-20, FP25B, AP810-2, 2-Pack

Pentek DGD-5005 Spun Polypropylene Filter Cartridge, 10-Inch x 4-1/2-Inch

Better H2O Products Inc. 2-Pack 5 Micron Multi-Gradient Sediment Filter, 20" x 4.5", Whole House Sediment Filtration, Fits Big Blue & Clear Housings, 2 Count

Aquaboon 5 Micron 20" Big Blue String Wound Sediment Water Filter Cartridge | Whole House Sediment Filtration | Compatible with PC40-20, WP1BB20P, 355222-45, WPP-45200-01, WPP-45200-01, 84650, 2-Pack

Sign up and get exclusive special deals