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USWF 5 Micron 10"x4.5" String Wound Sediment Filter - Whole House Cartridges - 14.44 - DiscountFilterStore.com

USWF-SW5-1045

USWF 5 Micron 10"x4.5" String Wound Sediment Filter

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$14.44

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Single	$14.44
2 PACK	$14.01
4 PACK	$13.57
6 PACK	$13.14
24 PACK	$12.71

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What's this?

Proudly manufactured in America supporting American workers and ensuring a high quality product.
Gradient filtration structure with a tighter weave at the core than at the surface to provide maximum dirt holding capacity and filter life.
Constructed with FDA Title 21 compliant polypropylene fiber string for use on untreated water supplies.
Fits most standard 10" x 4 1/2" filter housings including Pentek, Culligan, American Plumber and more.

Features & Specs

Package Qty: 1

Manufacturer's Id: SW5-1045

Actual Size (in): 9 7/8 inches (length) x 4 1/2 inches (outside diameter)

Primary Filter Media: String-Wound Polypropylene

Operating Temperature (°F): 40 - 155

Brand: USWF

Advertised Size: 10 x 4-1/2

Length (in): 9.88 in

Outside Diameter (in): 4.5 in

Maximum Temperature (f): 155

Media Type: Sediment Filter

Country of Origin: United States

Micron Rating Nominal: 5

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

Fine Sand

Sediment

Coarse Sand

Filter Life

Filter Life (months): 6 months

Check Our Comparable Products

Product Details

USWF-SW5-1045 is a 5 micron 10"x2.5" string wound sediment replacement filter that is proudly manufactured in the USA. It is made from FDA Title 21 compliant polypropylene string wound around a polypropylene core to provide a high quality filter independently tested to NSF / ANSI standards 42, 61, and 372.
String wound filters are typically used in well water applications because they are excellent at handling a wide variety of particle sizes. The string creates a large surface area for dirt holding, and as the string is wound tighter at the core than at the surface it provides great dirt holding capacity for non-uniform sediment.
Most private well owners know to avoid using cellulose filters on non-chlorinated well water, but many don't realize that cotton fibers used in many string wound cartridges are made up of over 90% cellulose material. USWF string wound filters are only made with polypropylene fibers because the synthetic fibers are more bacteria resistant, making USWF string wound filters the perfect sediment filter choice for untreated well water.
This American made filter is a compatible replacement for other popular string wound sediment filters like the Pentek WP5BB97P, Culligan CW5-BBS, Hydronix SWC-45-1005, 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 are the exact dimensions and micron rating of the USWF 5 Micron 10"x4.5" String Wound Sediment Filter?

The USWF String Wound Sediment Filter measures 10 inches in length by 4.5 inches in diameter (Big Blue size), making it compatible with standard 10" x 4.5" whole house filter housings. It features a 5 micron rating, which effectively captures sediment particles such as sand, silt, rust, dirt, and scale. The tightly wound polypropylene cord construction provides true depth filtration, trapping particles throughout the entire filter body rather than just on the surface.

How often should I replace the USWF 5 Micron 10x4.5 String Wound Sediment Filter?

The USWF 5 Micron String Wound Sediment Filter should be replaced every 3 to 6 months, depending on your water quality and usage. Homes with well water, high sediment levels, or heavy water consumption may need more frequent replacements. A noticeable drop in water pressure is a clear indicator that the filter has reached its capacity and needs to be changed to maintain optimal flow and filtration performance.

What contaminants does the USWF String Wound Sediment Filter remove?

This USWF String Wound Sediment Filter is specifically engineered to reduce sediment-based contaminants, including sand, silt, rust flakes, dirt, loose scale, and other suspended solids down to 5 microns in size. The graduated density of the string winding captures larger particles on the outer layers while finer particles are trapped deeper within the filter, extending its service life. Note: this filter does not remove chlorine, chemicals, or dissolved impurities—pair it with a carbon filter for comprehensive whole house filtration.

Is the USWF 5 Micron String Wound Sediment Filter compatible with Big Blue housings?

Yes, the USWF 5 Micron 10"x4.5" String Wound Sediment Filter is fully compatible with standard 10-inch Big Blue whole house filter housings from brands such as Pentek, Culligan, American Plumber, and other 10" x 4.5" housings. Its universal dimensions and open-ended design make it a direct replacement for many leading sediment cartridges used in residential whole-home filtration systems, well water setups, and pre-filtration applications.

What material is the USWF String Wound Filter made from, and is it safe for drinking water?

The USWF String Wound Sediment Filter is constructed from 100% food-grade polypropylene cord wound around a sturdy polypropylene core, making it safe for potable drinking water applications. The FDA-compliant materials contain no adhesives, binders, or surfactants that could leach into your water supply. This makes it ideal for use as a pre-filter in reverse osmosis systems, whole house filtration, and well water treatment where sediment reduction is essential before further filtration stages.

Comparable Part Number

USWF 5 Micron 10"x4.5" String Wound Sediment Filter

Frequently Asked Questions

USWF-SW5-1045 is comparable with the following part number(s)

Customers Also Purchased

	USWF 5 Micron 10"x4.5" String Wound Sediment FilterFrom $14.44	WP5BB97P Pentek Replacement Filter CartridgeFrom $29.19	WPX5BB97P Pentek Whole House Filter Replacement Cartridge$33.60	10 inch x 4.5 inch String-Wound Sediment Water Filter by Tier1 (5 Micron)From $15.04
Product Price	$14.44	$29.19	$33.60	$15.04
Product SKU	USWF-SW5-1045	PENTEK-WP5BB97P	PENTEK-WPX5BB97P	TIER1-SWC-45-1005
Filter Life (months)	6 months	3 months	6 months	6 months
Primary Filter Media	String-Wound Polypropylene	Polypropylene	Polypropylene	String-Wound Polypropylene
Micron Rating (Nominal)	5	5	5	5
Actual Size (in)	9 7/8 inches (length) x 4 1/2 inches (outside diameter)	—	9 7/8 inches (length) x 4 3/8 inches (outside diameter)	10 inches (length) x 4 1/2 (outside diameter)
Country of Manufacture	United States	—	United States	—