Micron spa filters are either used alone or in conjunction with pleated filters. Micron filters use a different "spun" style of filter media and typically are good to 5 microns so they are ideal for clarifying water.
The advantage of micron filters such as the Purezone spa filters is that they save money by reducing the number of spa chemicals required to maintain water clarity. As with everything not, all filter media is made the same and the quickest way some manufacturers cut costs is by lowering the quality of the filter media being used. Non-factory authorized spa filters can be made from filter media that breaks down rapidly and does not clean out well causing it to become clogged and unusable much quicker than the higher quality spa filters.
One more important aspect of spa filter construction to note is how the end caps are fixed to the filter media. Another way certain manufacturers of low-quality filters save money is to use the lower quality process to attach the filter caps onto the filter media. This often causes the filter to come apart at the end caps very early in their life span.
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