.product_section .product_form, .product_gallery { opacity: 1; } .multi_select, form .select { display: block !important; } .image-element__wrap { display: none; }

Refrigerator Filters

Search Fridge Filter

Fridge Filter Finder

Top Fridge Filter Brands

Specialty Fridge Filters

Whole House Filtration

Whole House Systems

Whole House Filters

Air Filters

Search Air Filters

Air Filter Finder

Air Filters by Size

Air Filter by Type

Air Filters by Brand

Water Filters

Reverse Osmosis

Undersink Filtration

Commercial Filtration

Countertop Filters

More Water Filters

USWF 10 Micron 10"x4.5" Melt Blown Sediment Filter - Whole House Cartridges - 9.46 - DiscountFilterStore.com

USWF-MB10-1045

USWF 10 Micron 10"x4.5" Melt Blown Sediment Filter

Name: USWF 10 Micron 10"x4.5" Melt Blown Sediment Filter
Brand: US Water Filters
SKU: USWF-MB10-1045
Price: 9.46 USD
Availability: InStock
Rating: 5.0 (1 reviews)

High Stock (152)

$9.46

Price Per Item
Single	$9.46
2 PACK	$9.18
4 PACK	$8.89
6 PACK	$8.61
24 PACK	$8.33

Choose a Pack Size:

Single

2 PACK

4 PACK

6 PACK

24 PACK

One Time Delivery

Select Auto-Ship and Save 10%

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 10" x 4 1/2" filter housings including Pentek, Culligan, American Plumber and more.

Features & Specs

Package Qty: 1

Manufacturer's Id: MB10-1045

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

Media: Melt Blown

Primary Filter Media: Meltblown 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: 10

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-MB10-1045 is a 10 micron 10"x4.5" 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 Hydronix SDC-45-1010, Hydronix SDF-45-1010, 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 10 Micron 10x4.5 Melt Blown Sediment Filter?

The USWF Melt Blown Sediment Filter has a 10-micron nominal rating, meaning it effectively captures sediment particles 10 microns and larger, including sand, silt, rust flakes, dirt, and scale. Its graded density construction features a coarser outer layer and a finer inner core, allowing it to trap larger particles on the outside while capturing smaller particles deeper within the filter, maximizing dirt-holding capacity and extending filter life.

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

This USWF sediment filter measures 10" in length by 4.5" in diameter (often called a "Big Blue" size). It is designed to fit standard 10" x 4.5" whole-house filter housings from manufacturers such as Pentek, Culligan, American Plumber, and other compatible Big Blue-style systems. Always confirm your housing dimensions before ordering to ensure a proper fit and leak-free seal.

How long does the USWF 10 Micron Melt Blown Sediment Filter last?

The USWF 10 Micron 10x4.5 Melt Blown Sediment Filter typically lasts 3 to 6 months, depending on your incoming water quality, sediment levels, and household water usage. Homes on well water or with high sediment content may need to replace the filter more frequently, while homes on municipal water with lower sediment may achieve the full 6-month service life. Inspect the filter regularly and replace it sooner if you notice reduced water pressure.

Is the USWF Melt Blown Sediment Filter made from safe, food-grade materials?

Yes, the USWF Melt Blown Sediment Filter is constructed from 100% pure polypropylene fibers that are FDA-compliant and food-grade safe. It contains no binders, adhesives, surfactants, or anti-static agents that could leach into your water. The thermally bonded melt blown design ensures structural integrity throughout its service life, making it safe for whole-house drinking water, well water, and pre-filtration applications.

Can this USWF filter be used as a pre-filter for RO systems or water softeners?

Absolutely. The USWF 10 Micron 10x4.5 Melt Blown Sediment Filter is an excellent pre-filter for reverse osmosis (RO) systems, water softeners, UV sterilizers, and carbon filtration systems. By removing sediment, rust, and particulates before water reaches downstream equipment, it protects sensitive membranes, resin beds, and carbon blocks from premature clogging and damage, extending the lifespan and efficiency of your entire water treatment system.

Comparable Part Number

USWF 10 Micron 10"x4.5" Melt Blown Sediment Filter

Frequently Asked Questions

USWF-MB10-1045 is comparable with the following part number(s)

Customers Also Purchased

	USWF 10 Micron 10"x4.5" Melt Blown Sediment FilterFrom $9.46	SDC-45-1010 Hydronix Whole House Replacement Sediment Filter Cartridge$11.68	10 inch x 4.5 inch Sediment Water Filter by Tier1 (10 Micron)From $9.48
Product Price	$9.46	$11.68	$9.48
Product SKU	USWF-MB10-1045	HYDRONIX-SDC-45-1010	TIER1-P10-10BB
Filter Life (months)	6 months	3 months	6 months
Primary Filter Media	Meltblown Polypropylene	Polypropylene	Polypropylene
Micron Rating (Nominal)	10	10	10
Actual Size (in)	9 7/8 inches (length) x 4 1/2 inches (outside diameter)	9 7/8 inches (length) x 4 1/2 inches (outside diameter)	9 7/8 inches (length) x 4 1/2 inches (outside diameter)
Country of Manufacture	United States	Thailand	—