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Single units EWO vma

Pre-filters, Micro-filters, Activated-charcoal-filters The structure of the v-m-a range as regards individual sizes and connecting threads is as follows: Two different sizes of housing are available with two or four different bowl lengths, which makes a total of 6 different nominal sizes or element sizes. For each size, two different connection threads are available (even three for the smallest sizes), thus making a total of 13 different versions of each single unit or combination.