Mon - Fri 9am - 5pm PT
String Wound
String wound filters options are a smart first line of defense when you want cleaner water and less sediment reaching fixtures and equipment. Built with tightly wound media, these cartridges trap dirt, sand, rust, and other particles while keeping water moving at a steady rate. Homeowners often use them for whole-house filtration and well water setups where sediment loads change with seasons. Many facilities rely on them too, since high dirt-holding capacity helps reduce changeouts and downtime.
About String Wound Filter Products
String-wound cartridges work well across many applications because they come in multiple lengths, diameters, and micron ratings to match your housing and water conditions. They are often installed as prefilters ahead of carbon or reverse osmosis stages, which helps protect downstream media and extend system life. For residential use, they support clearer showers, cleaner appliance water, and fewer clogged aerators. For commercial and light industrial needs, they fit systems used in breweries, wineries, hotels, and hospitals where steady sediment control matters. Choosing the right micron level helps balance clarity and flow, so you can target fine silt or focus on larger grit.
Why Choose iFilters for String Wound Filter Products?
iFilters makes it easy to find the right replacement by offering a broad selection of string wound sizes and microns, including standard and big blue styles. Product pages highlight key specs so you can match the cartridge to your existing housing with confidence. Many items are kept in stock so you can restock before performance drops, and Auto Ship supports routine maintenance schedules. You can also shop by best-selling options or compare similar cartridges across trusted brands. Fast checkout keeps your replacement plan on track.
Shop string-wound filter products online today!
Filters
iFilters SP30-KDF1-4510 Sediment and GAC/KDF Replacement Filter - 4.5" x 10"
5.0 / 5.0
10 Reviews
iFilters SP30-KDF1-4510 Whole House Sediment & GAC/KDF Replacement Filter – 4.5" x 10" Upgrade your home's water filtration with the iFilters S...
View full details
Sale
Sale
iFilters SP30-KDF2-4520 Whole House Sediment & KDF Water Filter Set, 30 Micron 4.5"x20"
iFilters SP30-KDF2-4520 Whole House Sediment & KDF Water Filter Set, 30 Micron 4.5"x20"
4.62 / 5.0
13 Reviews
iFilters SP30-KDF2-4520 Whole House Sediment & KDF Water Filter Set – 30 Micron, 4.5" x 20" Upgrade your home's water filtration system with th...
View full detailsPRO+AQUA FC-PK-100E Whole House Heavy Metals Well Water Filter Replacement Set 3 Stage 20", 5 Micron
5.0 / 5.0
5 Reviews
PRO+AQUA FC-PK-100E Whole House Heavy Metals Well Water Filter Replacement Set – 3-Stage, 20", 5 Micron Upgrade your PRO+AQUA PRO-100-E Filtration ...
View full detailsPRO+AQUA FC-PK19-100E Replacement Filter Set for PRO-100-E ELITE GEN2 System, Sediment, KDF/Blend, Carbon Infused
5.0 / 5.0
4 Reviews
PRO+AQUA ELITE GEN2 Three-Stage Replacement Filter Set for PRO-100-E GEN2 System Advanced Whole House Filtration for Superior Water Quality Designe...
View full detailsiFilters SP30-4510 - Sediment Pleated Water Filter City or Well Water, Washable 4.5" x 10", 30 Micron
5.0 / 5.0
3 Reviews
The SP30-4510 4.5" x 10" 30-micron polyester pleated cartridges are manufactured from durable polyester to provide you with a superior pleated Filt...
View full details
Sale
Sale
iFilters SW-CB5-4520 Whole House Sediment & Carbon Block Water Filter, 5 Micron 4.5"x20"
iFilters SW-CB5-4520 Whole House Sediment & Carbon Block Water Filter, 5 Micron 4.5"x20"
5.0 / 5.0
2 Reviews
iFilters SW-CB5-4520 Whole House Sediment & Carbon Block Water Filter Set – 5 Micron, 4.5" x 20" Premium Dual-Stage Whole House Filtration for ...
View full detailsSW-CB5-4510 Whole House Sediment & Carbon Block Water Filter, 5 Micron 4.5"x10"
5.0 / 5.0
2 Reviews
This dual filter set includes the SW5-4510 Sediment String-wound filter and CB5-4510 CTO carbon block whole house filters. Suitable for whole hou...
View full details
Sale
Sale
Sediment Pleated Water Filter City or Well Water, Washable 4.5" x 20", 30 Micron
Sediment Pleated Water Filter City or Well Water, Washable 4.5" x 20", 30 Micron
5.0 / 5.0
2 Reviews
The SP30-4520 4.5" x 20" 30-micron polyester pleated cartridges are manufactured from durable polyester to provide a superior pleated Filter that i...
View full details
Sale
Sale
SW5-4520 String Wound Sediment Water Filter Whole House or Commercial, 4.5 x 20, 5 Micron
SW5-4520 String Wound Sediment Water Filter Whole House or Commercial, 4.5 x 20, 5 Micron
5.0 / 5.0
2 Reviews
The SW5-4520 Polypropylene String Wound Filters has a particle retention Size of 5 micron and are used in a residential and commercial water filt...
View full details
Sale
Sale
SW5-4510 Whole House Sediment String Wound Water Filter Cartridge, 5 micron 4.5" x 10"
SW5-4510 Whole House Sediment String Wound Water Filter Cartridge, 5 micron 4.5" x 10"
5.0 / 5.0
2 Reviews
The SW5-4510 Polypropylene String Wound Filters has a particle retention Size of 5 micron and are used in a residential and commercial water filtra...
View full detailsCulligan CW5-BBS Compatible 5-Micron Sediment Cartridge – HD-950 Housing Replacement The Culligan CW5-BBS Compatible 5-Micron Sediment Cartridge is...
View full detailsThe Hydronix SWC-45-1005 polypropylene String wound filters have a particle retention Size of 5 micron and are used in a residential and commercial...
View full detailsWhole House String Wound Sediment Water Filter Cartridge 2.5" x 10" - 5 μm
5.0 / 5.0
2 Reviews
Hydronix SWC-25-1005 polypropylene String wound filters have a particle retention Size of 5 micron and are used in a residential and commercial wat...
View full detailsThe Culligan 25-Micron Sediment Cartridge CW25-BBS is a replacement drinking water filter cartridge for use in several Culligan water filter housin...
View full detailsHydronix SWC-25-1010 polypropylene String wound filters have a particle retention Size of 10 micron and are used in a residential and commercial wa...
View full detailsThe Hydronix SWC-45-2020 polypropylene String wound filters have a particle retention Size of 20 micron and are used in a residential and commercia...
View full details
Sale
Sale
Sediment String Wound Water Filter Whole House Commercial BB Size 4.5 x 20, 5 μm
The Hydronix SWC-45-2005 polypropylene String wound filters have a particle retention Size of 5 micron and are used in a residential and commercial...
View full details
Sale
Sale
Well Water, Home String Wound Sediment Water Filter Cartridge 2.5" x 20" - 20 μm
The Hydronix SWC-25-2020 polypropylene String wound filters have a particle retention Size of 20 micron and are used in a residential and commercia...
View full detailsThe Hydronix SWC-45-1020 polypropylene String wound filters have a particle retention Size of 20 micron and are used in a residential and commercia...
View full detailsHydronix SWC-25-1020 polypropylene String wound filters have a particle retention Size of 20 micron and are used in a residential and commercial wa...
View full detailsWhole House String Wound Sediment Water Filter Cartridge 2.5" x 10" - 30 μm
5.0 / 5.0
4 Reviews
Hydronix SWC-25-1030 polypropylene String wound filters have a particle retention Size of 30 micron and are used in a residential and commercial wa...
View full details
Sale
Sale
String Wound Water Filter Whole House Well Commercial BB Size 4.5" x 20" - 50 μm
The Hydronix SWC-45-2050 polypropylene String wound filters have a particle retention Size of 50 micron and are used in a residential and commercia...
View full detailsThe Hydronix SWC-25-1050 polypropylene String wound filters have a particle retention Size of 50 micron and are used in a residential and commercia...
View full detailsThe Hydronix SWC-45-1010 polypropylene String wound filters have a particle retention Size of 10 micron and are used in a residential and commercia...
View full details