Pentair 48DE Diatomaceous Earth Pool Filter 180008 – High-Clarity DE Filtration
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The Pentair 48DE Diatomaceous Earth Pool Filter (180008) provides exceptional water clarity by using diatomaceous earth (DE) to trap particles as small as 2–3 microns—far finer than sand or cartridge filters. Designed for residential pool systems that demand top-tier filtration, this DE filter delivers smooth, efficient flow with minimal pressure rise and extended cycles between cleanings.
Built with rugged materials and engineered for long-term durability, the 48DE reduces maintenance and helps ensure crystal-clear water. Its easy-access tank and simple backwash operation make servicing quick and straightforward, while the high-quality internal components support consistent performance season after season.
Pentair 48DE Diatomaceous Earth Pool Filter (180008) Compatibility
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Designed for inground residential pools
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Works with standard 2” pool plumbing connections
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Compatible with Pentair pumps including IntelliFlo®, WhisperFlo®, and SuperFlo®
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Integrates with Pentair automation systems (IntelliCenter®, EasyTouch®, IntelliTouch®)
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Suitable for systems requiring ultra-fine DE filtration and high water clarity
Frequently asked questions
How often should a filter cartridge be replaced?
Most cartridges are cleaned several times a season and replaced when the pleats no longer come clean, the fabric goes hard or brittle, or the end caps separate. Filter pressure that returns to high shortly after a cleaning is the usual sign that the element is finished.
What is the part number for this filter cartridge?
Pentair lists this filter cartridge under part number 180008. Quote 180008 when you cross-reference against your equipment manual, an existing part, or a parts diagram, so you are comparing the same revision.
How do I clean this cartridge?
Rinse between the pleats with a garden hose, working top to bottom, and soak in a dedicated filter cleaner to remove oils and scale. Avoid a pressure washer, which drives debris deeper into the fabric and cuts the pleats.
How do I confirm this fits my equipment?
Match the part number stamped on the component you are replacing, or look it up in the parts list for your Pentair equipment. If your model or serial number is not named on this page, send it to us before you order and we will confirm the fit.
Will this cartridge fit my filter housing?
Cartridges are matched by outside diameter, length, end-cap style and square footage, all of which are listed in the specification section. Compare those four dimensions against your existing element - the filter's brand name on its own is not enough to confirm a fit.
Is there a warranty on this filter cartridge?
It carries the standard Pentair manufacturer warranty. The terms are set by Pentair, and on some equipment the coverage only applies when a licensed professional performs the installation. Keep the receipt and packaging until you have confirmed correct operation.