Water filter cartridge Biofil™ Junior
for micro-filtrationpolyethersulfonemembrane

water filter cartridge
water filter cartridge
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Type of filtration
for micro-filtration
Other characteristics
for general purposes
Removal rating

Max.: 1.2 µm

Min.: 0.04 µm


A range of microbially rated cartridge filters from Porvair Filtration Group, designed for retrofitting into existing Junior-style housings. Biofil™ Junior cartridges are based on a naturally hydrophilic polyethersulphone membrane with a mirrored asymmetric pore structure. When combined with quality all-polypropylene cartridge components and high integrity manufacturing techniques common to all Porvair cartridge filters, the polyethersulphone membrane provides a high strength, long life cartridge of consistently precise microbial retention. Biofil™ Junior cartridges exploit the narrow pore size distribution and high void volume of the media to provide a choice of cartridges capable of meeting the requirements of most applications. Careful media selection ensures that Biofil™ Junior cartridges are also very suited to critical particle control down to 0.04 micron ratings. Biofil™ Junior cartridges offer high flux rates and low differential pressures, a feature common to polyethersulphone membranes. Biofil™ Junior cartridges benefit from the low non-specific protein binding characteristics of polyethersulphone membranes. They are also highly resistant to integrity failure caused by steam sterilisation and have excellent chemical compatibility characteristics. Furthermore, since they will not hydrolyse, Biofil™ Junior cartridges are ideal for use in ultra pure water supply systems (18MO.cm).


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