i3 ZERO Point-of-Care water filter for the shower

Legionella filter for the shower head

The i3 ZERO Point-of-Care water filters* retain bacteria such as Legionella pneumophila, Pseudomonas aeruginosa and non-tuberculous mycobacteria (NTM) from potable water. The i3 ZERO connect and direct are used on showers for the filtration of piped water. These water filters are building a reliable barrier against waterborne bacterial, fungal and protzoan pathogens.

*If local customs, governmental standards and regulations permit.

i3 ZERO connect: Water filter for the shower with quick-release coupling

The i3 ZERO connect has a quick-release connector which permits rapid and secure changes of filter on the shower hose. Information about the relevant quick-release connection adapters is available here

i3 ZERO direct: Water filter for the shower with screw thread attachment 

The i3 ZERO direct has a standard 1/2" screw thread which allows it to be fitted on the shower hose without a coupling.

i3 ZERO connect: Water filter for the shower with quick-release coupling
i3 ZERO direct: Water filter for the shower with 1/2" screw thread attachment


Get in touch

We would be happy to send you an individual offer for our i3 ZERO connect/direct. You can reach us at +1 980 888 8117 or send us your request.


  • Effective protection from extraneous contamination throughout the period of use due to the bacteriostatic properties of the filter housing

  • Stable flow rate during the 40-day period of use as a result of the use of the i3 High performance flat membranes*

  • Quick and easy installation by means of quick-release fastening or screw thread

  • Reliable sterilizing grade filtration due to the use of the i3 High performance flat membranes with an absolute pore size of 0.2 μm

Technical data

Bacterial retention > 7 log (Brevundimonas diminuta) per cm2 filter area
Extraneous contamination > 4 log Pseudomonas aeruginosa, Escherichia coli, Staphylococcus aureus per 24 hours
Flow rate 3.2 gal/min (15 L/min) at 75 psi (5 bar) initial*
Duration of use 40 days
Operating pressure max 75 psi (5 bar)
Operating temperature max 140 oF (60 oC) max 158 oF (70 oC) for 30 mins.
Shelf life 5 years
Chlorine resistance 200 ppm active chlorine for 1 hour or 10 ppm active chlorine for 40 days
Disinfection The filter can be disinfected by wiping with normal surface disinfectants.
Membrane i3 High performance flat membrane
Pore size of membrane 0.2 µm
Adaption i3 TWO connect: Quick-release coupling is required for installation*
i3 TWO direct: 1/2“ screw threat (no coupling required for installation) 
Couplings for i3 water filter

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Any questions? We’re happy to help.

Simply send us a message or give us your contact details. Our experts will get in touch with you to answer your questions.

i3 Membrane GmbH
Theodorstraße 41 P
22761 Hamburg
i3 Membrane Corporation
11330 Vanstory Drive
Huntersville NC. 28078