Superior High Temperature String Wound Cotton Filters from Spectrum. For applications with a higher operating temperature or where polypropylene is incompatible with the feed solution, the SWC cartridge provides graded particulate reduction and is supplied as standard with a stainless steel core for added strength.

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Frequently asked questions

SWC is wound from natural cotton yarn rather than polypropylene, which gives it a particular affinity for absorbing oils and hydrocarbons alongside standard sediment capture — polypropylene wound filters are generally preferred for pure water filtration since they resist bacterial growth better than cotton.

Cotton wound filters are often chosen for industrial applications involving oil, grease, or hydrocarbon contamination, where cotton's natural absorbency is an advantage — for general potable water sediment filtration, polypropylene is usually the better choice.

Cotton wound filters can be used in potable water applications, but polypropylene is more commonly specified for drinking water because it doesn't support bacterial growth as readily as a natural fibre — check the specific product listing for any relevant certifications before using SWC on a drinking water line.

Like Spectrum's other wound filter ranges, SWC covers a range of micron ratings for different sediment loads — check the specific product listing to match the rating to your application.

No — like other string wound cartridges, it's a single-use, disposable filter. Once the depth media is loaded with sediment or absorbed oil, it should be replaced rather than cleaned.