The Enpress ONE CT-20NANO-AG is the Green Filtration Series cartridge for the Enpress ONE Cartridge Tank: a dual-gradient double-pleated filter whose inner layer is electropositively charged NanoAl media, which Enpress rates to remove contaminants from 1 micron down to 0.2 micron — sub-micron performance from a pleated cartridge, without a membrane. A 20-micron pleated outer layer takes the coarse load first so the charged media lasts, and Agion® antimicrobial technology in the filter resists microbial growth on it.
Fits our NFS-HF Cartridge Tank Filtration System (residential / light-commercial configuration).
Specifications
| Enpress ONE NanoAl Pleated Cartridge with Agion Biostat, 20 Micron Pre-filter | |
|---|---|
| Filtration performance | |
| Inner media | Electropositively charged NanoAl pleated media, removes contaminants from 1 micron to 0.2 micron |
| Outer pre-filter | 20 micron pleated layer |
| Rated flow and capacity | Not published by Enpress for this series; sized on application — ask us |
| Addresses | Turbidity, insoluble scale, ferric iron, bacterial iron slime, colloidal solids, silt, rust and other particulate; bad taste and odour |
| Antimicrobial | Agion® technology, resisting microbial growth on the filter |
| Size and shipping | |
| Cartridge size | 8 in diameter × 40 in long |
| Shipping weight | 4.94 lb |
| Construction | |
| Filter | Dual-gradient double-pleated, NanoAl inner layer with 20 micron pleated outer layer |
| Seals | Double Buna-N o-ring seals |
| Support | Filter belly bands; built to prevent collapse under high flow or contaminant load |
| Option | PAC version (CT-20NANO-PAC-AG) adds a carbon block core — available on request |
| Housing it fits | |
| System | Enpress ONE Cartridge Tank, residential / light-commercial configuration — NFS-HF |
| Housing rating | NSF/ANSI 44 and 61 listed; tested to 150 psi operating pressure with a 4:1 burst safety factor (per the Cartridge Tank spec sheet) |
| Identification | |
| Manufacturer model | CT-20NANO-AG, listed by Enpress as CT-20xNanoAl-AG |
| Our SKU | CT-20NANO-AG |
| Series | Green Filtration Series — contaminant reduction |
| Manufacturer warranty | One year from date of purchase on ONE filter solutions, to the original purchaser, under the Enpress ONE Limited Warranty (2025-04). Normal wear items and damage from oxidising agents are excluded; see the document. |
How it is built
- NanoAl electropositive media — particles too small to strain out are attracted and held by charge, which is how a pleated filter reaches 0.2 micron.
- 20-micron pleated outer layer — a sacrificial coarse stage that extends the life of the charged media.
- Agion® antimicrobial in the filter, working continuously against microbial growth on the media.
- Double Buna-N o-rings and belly bands — no bypass, no collapse under load.
- Handle top cap for lightweight removal, and a double o-ring base that seats in the Cartridge Tank plumbing adapter — lift out, drop in, no tools.
Flush a new cartridge before use. Run water to drain until it runs clear before putting the system into service. Enpress recommends a drain on the outlet side of the Cartridge Tank for this.
Not a disinfection device. Do not use with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system.
Where it is used
Turbidity and fine-particulate polishing where a conventional pleated or string-wound filter is not fine enough: colloidal solids, ferric iron and iron-bacteria slime, silt and rust on well water; pre-filtration ahead of UV, RO and other equipment that wants sub-micron feed. Enpress does not publish a flow or capacity rating for this series, so tell us your flow and water analysis and we will size it.
Not sure which ONE cartridge or configuration suits your water and flow? Contact our engineers.
Sources: Enpress “Green Filtration Series” product literature (ELLC #002, 03/2013); Enpress “ONE Cartridge Tank” spec sheet; Enpress “ONE Limited Warranty” (2025-04). Performance claims are Enpress’s, based on independent lab results and manufacturer test data; actual performance depends on influent water quality, flow rate, system design and application. Micron ratings are nominal unless stated absolute. Enpress, ONE, Cartridge Tank, Vortech and Agion are trademarks of their owners, used here to identify the product supplied. Confirm critical figures with ForeverPure before purchase.
