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Pentek - 155583-43 EP-20BB Carbon Block Filter Cartridge, 20" x 4-5/8", 5 Microns

Pentek - 155583-43 EP-20BB Carbon Block Filter Cartridge, 20" x 4-5/8", 5 Microns

Q: when it says "reduces . . . chlorine taste" does this mean it removes chlorine from water or just alters it in some way that you don't taste it?

No carbon will remove the chlorine may not be 100% but you will definitely tell a difference if chlorine is all your dealing with then no need for a 5mic carbon go just carbon it's cheaper if you ever decide you want a water softener it's best to remove the chlorine first... But a great 1x20 filter

Q: Does it fit inside 10filter housing

I assume you are asking if this cartridge fits in the shorter "big blue" filter housing ... While its actually closer to 13"×7" they refer to it by average filter size which is 10"×4.5". That's a really good question since nowhere does it state which housing to use with it. Dimensions shown for this cartridge are 4.6"×4.6"×9.8". Dimensions for the Big Blue® housing are approx 7.25"×7.25"×13" and calling for a filter approximately 4.5"×10". This is the housing and filter combination that I use. The cartridge fits snugly and allows proper water flow in that housing.

Q: Our municipal water in San Francisco is pretty clean, how long before this filter cartridge is recommended for replacement?

This cartridge is rated for 6,000 gallons. If kitchen sink only, should provide drinking water for a year. If whole house, run 2 in parralel to get needed flow, the pair might last 3 months.

Product ID: 89597201

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Details

Material
Activated
Item weight
2.56 kg
External testing certification
NSF ANSI
Product benefits
Removes and a
Brand
Pentek

⚡5.5 psi low pressure drop

💧5 micron filtration precision

🔥Operates up to 180°F

Description

💧 Elevate your water game—because your health deserves the best filter in the room.

BUILT TO ENDURE - Operates seamlessly from chilly 40°F to scalding 180°F—perfect for any environment.
EFFORTLESS FLOW - Maintains optimal water pressure with just 5.5 psi drop at 5 gpm—no compromise on performance.
LONG LASTING PURITY - Filters up to 40,000 gallons at 4 gpm before replacement—stay worry-free longer.
CRYSTAL CLEAR HYDRATION - Reduces fine sediment & chlorine taste for pure, refreshing water every time.
CERTIFIED QUALITY ASSURANCE - NSF/ANSI Standard 42 certified for trusted, professional-grade water filtration.

The Pentek EP-20BB Carbon Block Filter Cartridge delivers professional-grade water purification with a nominal 5-micron filtration rating, effectively reducing sediment and chlorine taste/odor. Engineered with bonded powdered activated carbon and durable materials, it supports up to 40,000 gallons at 4 gpm with minimal pressure drop (5.5 psi) and operates across a broad temperature range (40–180°F). Certified to NSF/ANSI Standard 42, this 20" x 4-5/8" cartridge is ideal for residential and commercial drinking water systems seeking reliable, long-lasting filtration.

Specifications

Manufacturer	Pentair Industries
Part number	155583-43
Item Weight	2.56 kg
Product Dimensions	11.76 x 11.76 x 50.8 cm; 2.56 kg
Item model number	EP-20BB
Size	20" H x 4-5/8" W
Material	Activated carbon, Nitrile Rubber, Polyethylene, Rubber
Item Package Quantity	1
Number of Pieces	1
Batteries included?	No
Batteries Required?	No

Have a Question? See What Others Asked

where is it made?

when it says "reduces . . . chlorine taste" does this mean it removes chlorine from water or just alters it in some way that you don't taste it?

Does it fit inside 10filter housing

Our municipal water in San Francisco is pretty clean, how long before this filter cartridge is recommended for replacement?

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