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Perlite is a naturally occured product. The product is
rhyolitisk glass of volcanic origin and has a transparent
structure.
Perlite does not contain crystalline quartz, wherefore it is not
classified as dangerous goods, and therefore does not require to be
provided with markings warning against danger or health damages of
any kind.
Perlite has a very high filtration efficiency, and unlike former
powder products, perlite has a low density, which causes the
product to float effortless in the water-stream when the filter
tanks are emptied.
Below is scientific evidence that perlite is not harmful:
See our perlite pricelist here. |
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"The Defender filters have been invaluable to our operation; the
water quality is impeccable. When compared to our old system, we
have much better water quality and are spending less time
maintaining the system."
Everett Neal, Superintendent of Building &
Grounds
Kenyon College, Gambier, OH
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