The EEF series precision string wound filters for Extremely Efficient Filtration employ a polypropylene nonwoven final filter layer downstream of a wound pre-filter section. These filters remove a much higher percentage of fine-particulate compared to traditional string wound filters - up to 99% of 0.5 micron particles.
Filter users with challenging fluids who need to remove particulates at or below 1 micron diameter, and who want the economics and chemical compatibility of a string wound filter, have long relied on the EEF Series. Nominal removal ratings of 0.2 micron and 0.5 micron are available. The EEF series of depth filters offer a choice of pre-filtration media and support cores. End fitting options allow the retrofitting of most filter housings.