EP-20 Pentek Comparable Replacement Filter Cartridge by Tier1 - Whole House Cartridges - 15.46 - DiscountFilterStore.com

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TIER1-EP5-20

EP-20 Pentek Comparable Replacement Filter Cartridge by Tier1

Name: EP-20 Pentek Comparable Replacement Filter Cartridge by Tier1
Brand: Tier1
SKU: TIER1-EP5-20
Price: 15.46 USD
Availability: InStock
Rating: 4.7 (13 reviews)

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$15.46

Price Per Item
Single	$15.46
2 PACK	$15.00
4 PACK	$14.53
6 PACK	$14.07
24 PACK	$13.61

Fits most housings that accept standard 20-inch x 2.5-inch water filter cartridges

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What's this?

Estimated Shipping Date:
Between 07/10/26 and 07/15/26

Ships fast!
Reduces chlorine taste, odor and sediment down 5 microns and larger
Ensures you drink, serve and use only the highest quality water!

Features & Specs

Package Qty: 1

Manufacturer: Tier1

Manufacturer's Id: EP5-20

UPC: 799932612466

Actual Size (in): 19 7/8 inches (length) x 2 1/2 inches (outside diameter)

Media: Powder Activated Carbon Block

Primary Filter Media: Activated Carbon Block

Operating Temperature (°F): 40 - 180

Operating Temperature (°C): 4.4 - 82.2

Warranty Guarantee: Unconditional Product Guarantee for Life of the Product

Brand: Tier1

Advertised Size: 20 x 2-1/2

Length (in): 19.88 in

Outside Diameter (in): 2.5 in

Width (in): 2.5 in

Media Type: Carbon Filter

Country of Origin: China

Micron Rating Nominal: 5

Flow Rate (gpm): 2.0

Includes: One 20 x 2.5 Inch Carbon Block Replacement Filter by Tier1

Instructions

Turn off water supply. Press red pressure-relief button (if present).
Unscrew housing. Remove large o-ring, wipe clean and set aside.
Discard used filter cartridge. Wash housing with dish soap and warm water using a nonabrasive sponge or cloth. Rinse thoroughly. Fill 1/3 with water. Add about 1 tablespoon of bleach and scrub to disinfect. Rinse thoroughly.
Lubricate o-ring with clean silicone grease. Change o-ring if any damage cuts or degradation are present. Insert o-ring in groove.
Insert new filter cartridge.
Screw housing onto the cap and hand-tighten. Do not over tighten. Make sure cap standpipe slips into cartridge.
Turn on water supply. Press pressure-relief button (if present). Check for leaks before leaving installation.

Contaminants Reduced

Bad Taste and Odor

Chlorine Taste & Odor

Odor

Particulates

Sand

Sediment

Silt

Filter Life

Filter Life (gallons): 12,000

Filter Life (months): 6 months

Warranty Info

Warranty Guarantee: Unconditional Product Guarantee for Life of the Product

Prop65 warning applies to products that contain carbon media. Click here for more details

WARNING: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer and birth defects, or other reproductive harm. For more information go to www.p65warnings.ca.gov

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Product Details

The EP-20 Pentek Comparable Replacement Filter Cartridge by Tier1 goes to work reducing chlorine taste and odor and sediment particles 5 microns or larger to significantly improve the quality of your water. Manufactured to fit into any filtration system that uses a standard 20 x 2.5-inch filter cartridge, you can rest easy knowing your replacement water filter is sized right for your housing. Drink, serve, and use the high-quality water you deserve by ordering the EP-20 Pentek Comparable Replacement Filter Cartridge by Tier1 today.

Frequently Asked Questions

What is the micron rating of the Tier1 EP5-20 carbon block water filter?

The Tier1 EP5-20 is a 5-micron carbon block water filter designed to reduce chlorine taste and odor, sediment, rust, dirt, and other particulates from your water supply. The 5-micron rating makes it ideal for whole-house and point-of-use applications where finer filtration is needed without significantly restricting flow. Its activated carbon block construction also helps reduce VOCs and other chemical contaminants commonly found in municipal water.

What are the dimensions and compatibility of the Tier1 EP5-20 filter?

The Tier1 EP5-20 measures approximately 20" in length with a 4.5" outer diameter, making it a standard Big Blue size filter. It's compatible with most 20" x 4.5" whole-house filter housings, including Pentek, American Plumber, and other standard Big Blue systems. This cross-compatibility makes the EP5-20 a versatile replacement for many OEM carbon block cartridges used in residential and light commercial filtration setups.

How long does the Tier1 EP5-20 carbon block filter last?

The Tier1 EP5-20 has a filtration capacity of up to 20,000 gallons or approximately 6 months of use, whichever comes first. Actual lifespan may vary based on your water quality, sediment levels, and daily usage. For households with high sediment or heavy chlorine levels, more frequent replacement may be necessary to maintain optimal flow rate and contaminant reduction performance.

Is the Tier1 EP5-20 filter NSF certified?

The Tier1 EP5-20 carbon block filter is manufactured from NSF-listed components and tested to NSF/ANSI Standard 42 criteria for the reduction of chlorine taste and odor. The filter media and materials meet safety and performance standards for potable water applications, ensuring reliable contaminant reduction and safe drinking water throughout its service life.

What is the maximum flow rate and operating conditions for the Tier1 EP5-20?

The Tier1 EP5-20 supports a maximum flow rate of approximately 8 GPM (gallons per minute), making it suitable for whole-house applications. It operates within a temperature range of 40°F to 100°F and a maximum pressure of 125 psi. For best performance, install the EP5-20 in a properly sized 20" Big Blue housing and flush the filter for 5-10 minutes after installation to remove any loose carbon fines before regular use.

Comparable Part Number

TIER1-EP5-20 is comparable with the following part number(s)

Compatible With

EP-20 Pentek Comparable Replacement Filter Cartridge by Tier1

Frequently Asked Questions

TIER1-EP5-20 is comparable with the following part number(s)

TIER1-EP5-20 fits the following model number(s)

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Product Price	$15.46	$29.69
Product SKU	TIER1-EP5-20	USWF-CB5-2025
Filter Life (months)	6 months	6 months
Primary Filter Media	Activated Carbon Block	Activated Carbon Block
Micron Rating (Nominal)	5	5
Actual Size (in)	19 7/8 inches (length) x 2 1/2 inches (outside diameter)	20 inches (length) x 2 1/2 inches (outside diameter)
Country of Manufacture	China	United States