Glass columns for biofiltration

[Richard Witherden]

Anand

You can make these very easily yourself from old strip lighting tubes.  

Rick

 I am in search of a glass column of size approx. 30 cm in length & 3-3.5 cm 
> in dia.
> that can used for Biological filtration of drinking water.

> Can anybody give me som info about companies that manufactures these sort 
> of glass columns.

> regards,
> Anand

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