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→Proprietary products
==Proprietary products==
==Proprietary products==
As with underground [[pretreatment]] there are an increasing number of proprietary products available. Some of those listed below are currently only available overseas.
As with underground [[pretreatment]] there are an increasing number of proprietary products available. Some of those listed below are currently only available overseas.
*[http://www.rainguardian.biz/ rain guardian]
*[http://www.rainguardian.biz/ Rain Guardian]
*[https://oldcastleprecast.com/oldcastle_product/4-out-swalegard-pre-filter-grassy-swale/101168/ Swalegard]
*[https://oldcastleprecast.com/oldcastle_product/4-out-swalegard-pre-filter-grassy-swale/101168/ Swalegard]
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[[Category:Pretreatment]]
[[Category:Pretreatment]]