Small Whole House Filters — “Big Blue” Units
For Light Duty
Whole House or Commercial Applications
The old standby “Big Blue” filter has been a regular in water filtration for many years. It uses the standard 4.5" x 9.75" filter cartridge that you can get wherever water filtration equipment is sold.
The 10" Big Blue is pictured at right, beside our 20" whole house filter, to give you a sense of the filter's size. The compact 10" unit uses the same cap and has the same high flow capacity. For information about the 20" unit, go here.
Each system below consists of the filter vessel(s), bracket, housing wrench, and cartridge(s).
Includes a 10" housing, mounting bracket kit, wrench and a 5 Micron Wound String Sediment Cartridge.
Includes a 10" housing, mounting bracket kit, wrench and a 5 Micron MatriKX CTO Extruded Carbon Block Cartridge.
Includes two 10" housings, a mounting bracket kit, wrench and a 5 Micron Wound String Sediment Cartridge and MatriKX CTO 5-micron Extruded Carbon Block Cartridge.
Replacement Cartridges
A popular depth filter for normal sediment applications.
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Type |
Sediment |
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Micron |
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Media |
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A free-flowing but very effective carbon block. A versatile and inexpensive filter that works anywhere carbon filtration is needed.
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Type |
Carbon Block |
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Micron |
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Media |
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Note: Any filter cartridge in the 4.5" x 10" category in our Cartridge Menu will fit these units. You can purchase the unit with any cartridge listed (please inquire about price).
Replacement Parts
Size 8. Fits Pentek Big Blue housings for 4.5" width cartridges, including our Compact Whole House filters. Please note: This wrench does not fit clear Pentek 4.5" X 10" housing.
Fits Pentek Big Blue® filter housings for 4.5" width cartridges. Used in our Compact Whole House Filters, Large Garden Hose Filters for 4.5" width cartridges, and "Classic" Pura Ultraviolet UVBB units.
Site Index
Filtration Systems
- Aeration for Iron & Sulfide
- Backwashing Filters
(whole house & well units)
- Chlorine & Chemical Injectors
- Countertop Water Filters
- Emergency Filters
- Garden Hose Filters
- Reverse Osmosis, Residential
- Reverse Osmosis, Commercial
- Shower Filters
- Specialty Filters
- Ultraviolet Systems
- Undersink Filters
- Water Softeners
- Whole House Filters
Cartridges
Parts
- Replacement Parts
- Faucets
- Filter Media
- Fittings
- Housings
- O-rings
- Pumps
- Pura UV
- R.O. Parts
- R.O. Tanks
- R.O. Booster Pump
- VIQUA UV