The Enpress ONE CT-20-CB is the high-porosity, low-pressure-drop carbon block from the Blue Filtration Series, made for the Enpress ONE Cartridge Tank. It reduces chlorine, bad taste and odour from potable water with surface-modified coconut-shell carbon in a proprietary binder, and its 20-micron structure trades the finer particulate cut of the CT-03-CB for a lower pressure loss.
Fits our NFS-HF Cartridge Tank Filtration System (residential / light-commercial configuration).
Specifications
| Enpress ONE 20 Micron Carbon Block Low Pressure Drop Cartridge | |
|---|---|
| Filtration performance | |
| Nominal micron rating | 20 micron (85% or greater removal of the rated particle size) |
| Rated capacity | More than 150,000 gallons (567,812 litres) |
| Rated flow | 7 gpm (26.50 L/min) |
| Chlorine reduction | Greater than 90%, capacity estimated at 2 ppm free chlorine |
| Reduces | Chlorine, bad taste and odour from potable water |
| Size and shipping | |
| Cartridge size | 8 in diameter × 40 in long |
| Shipping weight | 13.09 lb |
| Construction | |
| Media | High-performance coconut-shell carbon block, NSF/ANSI 61 certified carbon |
| Binder | Proprietary binder system |
| Outer wrap | Polypropylene wrap with polyethylene netting |
| Materials | FDA-approved materials; California Proposition 65 compliant |
| 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-20-CB (Enpress LLC) |
| Our SKU | NFS-20-CB-HF |
| Series | Blue Filtration Series — sister models CT-03-CB (3 micron, high capacity) and CT-03-CB-AMINE (chloramine) |
| 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
- Coconut-shell carbon — more micropores than coal- or wood-based carbon, so more surface for chlorine, taste and odour to adsorb onto. NSF/ANSI 61 certified.
- Open 20-micron block structure — the high-porosity build that keeps the pressure loss low.
- Polypropylene wrap and polyethylene netting keep carbon fines in.
- 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.
- Supplied with a disposal bag.
Flush a new block 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
Chlorine, taste and odour reduction where flow and pressure loss matter more than fine particulate cut: point-of-entry on city water, food service, make-up water. If you also want 3-micron particulate reduction from the same block, the CT-03-CB is the one.
Not sure which ONE cartridge or configuration suits your water and flow? Contact our engineers.
Sources: Enpress “Blue 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.
