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USWF 20 Micron 20"x2.5" Melt Blown Sediment Filter - Whole House Cartridges - 6.79 - DiscountFilterStore.com

USWF-MB20-2025

USWF 20 Micron 20"x2.5" Melt Blown Sediment Filter

Name: USWF 20 Micron 20"x2.5" Melt Blown Sediment Filter
Brand: US Water Filters
SKU: USWF-MB20-2025
Price: 7.06 USD
Availability: OutOfStock
Rating: 5.0 (3 reviews)

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$7.06

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Single	$7.06
2 PACK	$6.97
4 PACK	$6.38
6 PACK	$6.18
24 PACK	$5.98

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What's this?

Proudly manufactured in America supporting American workers and ensuring a high quality product.
4-layered filtration for improved efficiency and dirt holding capacity throughout the entire life of the filter.
100% melt blown polypropylene construction with no binders or adhesives.
Fits most standard 20" x 2 1/2" filter housings including Pentek, Culligan, American Plumber and more.

Features & Specs

Package Qty: 1

Manufacturer's Id: MB20-2025

Actual Size (in): 20 inches (length) x 2 1/2 inches (outside diameter)

Media: Melt Blown

Primary Filter Media: Meltblown Polypropylene

Operating Temperature (°F): 40 - 155

Brand: USWF

Advertised Size: 20 x 2-1/2

Length (in): 20 in

Outside Diameter (in): 2.5 in

Maximum Temperature (f): 155

Media Type: Sediment Filter

Country of Origin: United States

Micron Rating Nominal: 20

Flow Rate (gpm): 10.0

Instructions

Turn off water supply and release pressure in the filter housing. (Press red pressure-relief button on housing if present.)
Unscrew filter housing sump. (Use filter wrench if nessecary.)
Discard used filter cartridge. Remove the sump o-ring, wipe clean and set aside.
Wash housing with dish soap and warm water using a nonabrasive sponge or cloth. Rinse thoroughly
If unpleasent odor is present disinfect filter housing. Fill 1/3 with water. Add about 1 tablespoon of bleach and scrub to disinfect. Rinse thoroughly
Lubricate o-ring with clean silicone grease and place back onto the sump housing. (Check for cracks or imperfections on the o-ring while lubicating, and replace o-ring if damaged.)
Insert new filter cartridge ensuring that it is seated properly in the sump housing.
Screw the sump housing back onto the cap and hand-tighten. Do not use the filter wrench to prevent over tightening.
Turn on the water supply and check for leaks before leaving the installation.
Flush out any air from the filter housing. (Using the red pressure-relief button, or a nearby down-stream faucet.)

Contaminants Reduced

Dirt

Sediment

Silt

Coarse Sand

Filter Life

Filter Life (months): 6 months

Check Our Comparable Products

Product Details

USWF-MB20-2025 is a 20 micron 20"x2.5" melt blown sediment replacement filter that is proudly manufactured in the USA. It is made from FDA Title 21 compliant 100% melt blown polypropylene and doesn't use any surfactants, binders, or adhesives to create an exceptional product independently tested to NSF / ANSI standards 42, 61, and 372.
USWF melt blown filters utilize staged depth loading for maximum dirt holding and filter efficiency. The outermost layers of the filter are made of larger fibers to trap larger particles while the innermost layer traps the fine particles down the filter's micron rating. Most of the competition only has 3 stages of filtration, but USWF melt blown filters include an additional layer. This fourth layer of filtration provides a more consistent distribution of dirt through the filter improving its efficiency without sacrificing any dirt holding capacity.
This American made filter is a compatible replacement for other popular polypropylene sediment filters like the Purtrex PX20-20, Hydronix SDC-25-2020, and more.
Proudly made in America

Choosing American-made products means investing in quality you can trust, while also supporting jobs and communities across the United States. American manufacturing is held to strict quality and safety standards, ensuring durable, reliable products built to last. By buying domestically, you help strengthen the U.S. economy, support local workers, and reduce reliance on overseas production. Plus, with shorter supply chains and lower transportation emissions, American-made goods contribute to a smaller environmental footprint - making it a smart choice for both performance and sustainability.

Interested in reading more about US-made products and what we offer? Read our article, Why Buy American Made Filters?

Frequently Asked Questions

What is the micron rating of the USWF 20x2.5 Melt Blown Sediment Filter and what does it capture?

The USWF 20-Micron 20"x2.5" Melt Blown Sediment Filter has a 20-micron nominal rating, making it ideal for capturing larger particulate matter such as sand, silt, rust flakes, dirt, and scale from your water supply. It is best used as a pre-filter in multi-stage whole house systems or as a first-stage filter before finer carbon or reverse osmosis filtration stages, extending the life of downstream filters.

What are the exact dimensions and housing compatibility of this USWF sediment filter?

This USWF sediment filter measures 20 inches in length and 2.5 inches in outer diameter (20" x 2.5"), making it a standard Big Blue slim-line size. It fits any standard 20-inch filter housing with a 2.5-inch inner diameter, including most whole house and under-sink filtration systems that accept this universal size. Always verify your housing specifications before installation.

How is this melt blown filter constructed and why does it matter?

The USWF 20-Micron filter is manufactured from 100% pure polypropylene fibers using a thermally bonded melt blown process. This creates a true gradient density structure—coarser on the outside and finer toward the core—which allows larger particles to be trapped on the outer layers while smaller particles are captured deeper within the filter. This design maximizes dirt-holding capacity and extends service life compared to standard spun or string-wound sediment filters.

How often should I replace the USWF 20-Micron 20"x2.5" Sediment Filter?

The USWF 20-Micron 20x2.5 Melt Blown Sediment Filter should typically be replaced every 3 to 6 months, depending on your water quality and usage. Homes with high sediment levels, well water, or heavy daily consumption may require more frequent changes. A noticeable drop in water pressure or visible discoloration on the filter is a clear sign it's time for replacement to maintain optimal flow and filtration performance.

Is the USWF 20-Micron Melt Blown Sediment Filter safe for drinking water applications?

Yes, the USWF 20-Micron Melt Blown Sediment Filter is constructed from FDA-compliant, food-grade polypropylene with no added binders, adhesives, or surfactants, making it safe for potable water applications. While this sediment filter specifically targets particulate reduction and is not designed to remove chemical contaminants, it pairs excellently with carbon block or reverse osmosis stages to deliver comprehensive drinking water treatment.

Comparable Part Number

USWF 20 Micron 20"x2.5" Melt Blown Sediment Filter

Frequently Asked Questions

USWF-MB20-2025 is comparable with the following part number(s)

Customers Also Purchased

	USWF 20 Micron 20"x2.5" Melt Blown Sediment FilterFrom $7.06	PX20-20 Purtrex Replacement Water FilterFrom $16.92	FPMB20-20 Watts Flo-Pro Whole House Water Filter CartridgeFrom $19.94	P20-20 Tier1 Sediment Water FilterFrom $12.42
Product Price	$7.06	$16.92	$19.94	$12.42
Product SKU	USWF-MB20-2025	PURTREX-PX20-20	WATTS-FPMB20-20	TIER1-P20-20
Filter Life (months)	6 months	6 months	6 months	6 months
Primary Filter Media	Meltblown Polypropylene	Polypropylene	Polypropylene	Polypropylene
Micron Rating (Nominal)	20	20	20	20
Actual Size (in)	20 inches (length) x 2 1/2 inches (outside diameter)	19-7/8 (length) x 2 1/2 inches (outside diameter)	20 inches (length) x 2 1/2 inches (outside diameter)	20 inches (length) x 2 1/2 inches (outside diameter)
Country of Manufacture	United States	United States	—	China