zelbrite is consider sand filter category? is it safe for drinking directly?
External Water Filter, Membrane or Sand type?
External Water Filter, Membrane or Sand type?
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Jul 20 2011, 10:03 PM
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#1
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Senior Member
3,375 posts Joined: May 2005 From: MeeRee |
zelbrite is consider sand filter category? is it safe for drinking directly?
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Jun 29 2012, 08:41 AM
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#2
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Senior Member
3,375 posts Joined: May 2005 From: MeeRee |
i think mostly people use sand for external and small membrane filter inside right? double filter
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