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Description, long copy, and specifications.
Filtration media Adsorbent
Jacobi AquaSorb CS (12–40 mesh) is a granular activated carbon made by Jacobi Carbons from coconut shell and activated with steam.
Made of: Steam-activated coconut-shell carbon
Form: Granules, 12–40 mesh (1.70–0.425 mm)
Main job: Reduces free chlorine and adsorbs organic chemicals such as chloroform
Used in: Waslix custom layered cartridges; also sold loose by weight
Activated carbon works in two ways. It turns free chlorine into chloride within seconds of contact, and its very fine pores hold on to many dissolved organic chemicals as the water flows past.
Reduces free chlorine: Jacobi lists rapid dechlorination, with a typical dechlorination half-length of 2.2 cm for this size under its own test method
Adsorbs organic chemicals: Jacobi describes this grade as particularly well suited to small organic compounds and their chlorinated by-products, such as chloroform and other trihalomethanes (THMs)
Solvents and pesticides: the US EPA names granular activated carbon a best available technology for many regulated chemicals, for example benzene, trichloroethylene (TCE) and atrazine; that rating is for water utility plants, which give far more contact time than a cartridge
Grade quality: Jacobi specifies an iodine number of at least 1,000 mg/g, within the 900–1,050 range the Water Quality Association gives for drinking-water carbon
Evidence: well established Chlorine reduction and the adsorption of organic chemicals by granular activated carbon are documented by the US EPA, the Water Quality Association and university extension services. The grade figures are Jacobi's typical values, not a test of our individual lot.
Carbon goes after any KDF layer and ahead of ion-exchange resins, which Jacobi lists this carbon for protecting from chlorine and organic fouling; every extra carbon layer adds contact time.
Layer position: After any KDF layer; before ion-exchange resins, calcite and the outlet pad
Pairs well with: KDF-55 ahead of it; resin, calcite and the filtration pad after it
Keep in mind: Chlorine goes in seconds, but organic chemicals need much more contact, so more layers and a slower flow add margin; it does not remove bacteria, nitrate, fluoride, hardness or most metals
Material | Coconut-shell granular activated carbon, steam activated |
|---|---|
Form | Granules |
Size (mesh or diameter) | 12–40 mesh (1.70–0.425 mm) |
Spec source | Product title; Jacobi AquaSorb CS technical data sheets |
Before first use: Pour gently to keep dust down, then rinse with clean cold water until it runs clear; new carbon sheds black fines and can raise the pH of the water for a while after installation
Storage: Keep sealed and dry, away from odours, solvents and strong chemicals; wet carbon draws oxygen from the air, so store it in a well-ventilated place
Replacement: Replace it with the cartridge on its planned schedule, not only when the taste changes; a used-up carbon layer can release chemicals it collected
Only slowly. Ordinary activated carbon needs far more contact time for chloramine than for chlorine. If your water utility uses chloramine, a catalytic carbon such as Jacobi AquaSorb CX-MCA is the better layer.
We do not claim either. In a peer-reviewed column test, coconut-shell carbon let PFOA through after about 500 bed volumes, against 17,200 for a coal-based carbon, and we do not credit loose carbon granules for lead. Use a PFAS-selective resin or a lead-reduction medium for those.
Use it on cold water only. Some chemicals that carbon has adsorbed can be released again in hot water.
No certification is claimed for this product. NSF lists Jacobi Carbons' AquaSorb CS under NSF/ANSI/CAN 61 (material safety) as a process medium for public water systems, made at named Jacobi plants, noting that it has not been evaluated for point-of-use applications, and we have not yet confirmed that our stock comes from a listed plant. Complete filter systems, not loose media, are certified for performance to NSF/ANSI 42 or 53.
How well any medium works depends on your water, the flow rate, contact time and the other layers in the cartridge. This page describes the loose medium, not a certified filter system.
Jacobi AquaSorb CS is a coconut-shell granular activated carbon, steam activated and sized 12–40 mesh. It turns free chlorine into chloride within seconds of contact and adsorbs many dissolved organic chemicals, including chloroform and other trihalomethanes. We do not credit it for PFAS, lead, nitrate, fluoride or bacteria.
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