4 stage (UF) ultrafiltration systems based on “TWIST” cartridge type, made of NSF certified components. Package contains cartridges “SED MB 1M TW”, “SOFT STRO 2 TW”, “CTO L S TW”, “UF TW” (for more specific cartridge information please check the cartridge section) F17 C long-reach chrome faucet, 1/2″ feed water connector tubing, and other accessories for easy and quick installation.
Difference between UF (UltraFiltration) and UV (UltraViolet)
| UltraFiltration | UltraViolet | |
| Work with little or no water pressure | YES | YES |
| Work without electricity | YES | YES |
| Kill all viruses and bacteria? | YES | YES |
| Remove all viruses and bacteria? | YES The bodies of virus and bacteria are removed from the water |
NO The bodies of virus and bacteria remain in the water |
| Needs pre-filtration? | NO Works with clear water as well as water with high turbidity |
YES Water needs to be clean for the UV to work |
UltraFiltration (UF)
Effective removal of viruses, bacteria, parasites and most microorganisms known to contaminate the water Effective reduction of endotoxins Reduce occurrence of chemical by-product formation Minimal residue of chemical interference Economical, easy to use, easy to replace.
UltraViolet (UV)
Does not remove dissolved impurities UV water purifier kills bacteria and viruses but does not remove dissolved impurities such as pesticides, rust, arsenic, fluoride, etc Does not convert hard water to sweet, soft water Requires electricity to run Not effective on the water with high turbidity As UV light is invisible, it’s very hard to know whether UV purifier is working or not If UV purifier stops working and user unable to find out, results UV water purifier delivers impure water UV rays do not remain in water once water is purified UV rays may miss microorganism while purifying and the remaining microorganisms multiply and contaminate Most UV systems work within parallel with chlorination, which is not good for health.
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