Sand, rust, and silt get caught throughout the fibre matrix of a poly spun cartridge, not just on its outer surface, which is what gives this depth-filtration style its edge over surface filters for fine sediment. Sizes here run from 10” to 20”, split across Standard and Jumbo formats, with micron ratings between 1 and 50 depending on the product you pick.
Choose from Davey Microlene (WaterMark certified in the Jumbo range), Pentair, and Waimana Water, including the Pentair DGD Series dual gradient cartridge for extended dirt-holding capacity. These cartridges are replace-only and not designed for cleaning or reuse, so check your housing size and micron rating before ordering.
FAQs
Can poly spun cartridges be cleaned and reused?
No. Because these are depth filters, sediment gets trapped throughout the fibre rather than sitting on the surface, so rinsing won’t restore them. Once loaded, the cartridge needs to be replaced rather than cleaned.
What’s the difference between a Standard and a Jumbo cartridge?
A Jumbo cartridge’s bigger diameter means more filter media packed in, so it typically runs longer between changes than a Standard one, which is built for smaller or slimline housings. Jumbo cartridges need a Jumbo housing and won’t fit a Standard one, so check your existing setup first.
Which micron rating should I choose for tank or rainwater supplies?
A 1-micron cartridge is the standard choice ahead of UV disinfection, since it filters fine enough to catch parasitic cysts like Giardia and Cryptosporidium. If cyst protection isn’t a concern and you’re after a longer interval between changes, 5 or 10 microns is a common alternative.
What makes the Pentair DGD Series different from a standard polyspun cartridge?
The DGD Series layers a coarser outer section over a finer inner core within the same cartridge, rather than using one density throughout. Larger debris gets caught early, and finer particles are filtered further in, so the cartridge handles a broader mix of sediment before it’s spent.
How often should I replace a poly spun cartridge?
Most households replace these every 6 to 12 months, though heavier sediment loads or finer micron ratings will shorten that interval. A noticeable drop in water flow is usually the clearest sign it’s time for a change.
