This product is made in the USA.

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

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.

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.

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💧 Elevate your water game with every sip—because clean water is the new luxury.

BUILT TO LAST - Bonded PAC media with polyolefin pre-filter extends cartridge life
EFFORTLESS FLOW - Low initial pressure drop of 5.5 psi at 5 gpm maintains steady water pressure
PRECISION FILTRATION - 5-micron nominal rating captures fine sediment with 85% efficiency
VERSATILE PERFORMANCE - Operates seamlessly from chilly 40°F to near-boiling 180°F
CRYSTAL CLEAR HYDRATION - Reduces chlorine taste & odor for refreshingly pure water

The Pentek EP-20BB Carbon Block Filter Cartridge is a 20-inch filtration powerhouse designed for residential and commercial use. Featuring a 5-micron nominal filtration rating, it effectively reduces fine sediment and chlorine taste and odor, certified by NSF and ANSI standards. Its bonded PAC media combined with a polyolefin pre-filter ensures extended cartridge life, while maintaining a low pressure drop of 5.5 psi at 5 gallons per minute. Engineered to perform across a broad temperature range of 40 to 180°F, this filter guarantees consistently clean, great-tasting water for any setting.

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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Material	Polyethylene (PE)
Item Weight	2.56 kg
External Testing Certification	NSF, ANSI
Product Benefits	Reduces Impurities and Chlorine for Cleaner, Better-Tasting Water
Brand	pentek
UPC	851905131050 700999877941 798527517490 132017513058 163121152147 163120790494 806294984510 115971047135 851905125257 851905125202 182682388031 809390003468 115971035729 051678583432 808112760696 807032972783
Global Trade Identification Number	00051678583432
Manufacturer	Pentair Industries
Item model number	EP-20BB
ASIN	B00310Y9KI

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

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