BIOFIL 3M sterile screw-in shower filter

BIOFIL anti-Legionella and all-germ shower head filter.
Device made from ABS.
Membrane type: tubular microfiltration.
Membrane made from polyethylene.
Pore cut-off threshold: 0.1?m nominal and 0.2?m absolute sterilising grade.
Qualified water volume per duration of use: 9,000 litres.
Filtration flow rate: 6.2 lpm at 1 bar, 11.2 lpm at 3 bar and 13.2 lpm at 5 bar (filter only, excludes any flow rate restriction in the tap).
Maximum upstream pressure at the point-of-use: 5 bar.
Maximum lifespan: 3 months after installation.