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J Dixon
 
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Default Is it possible to stop fermentation

Lee,
Nominal is a rating method which if I recall is that the average is .45
micron for example. An absolute rated filter will not allow anything larger
than .45 through, and is a much more stringent standard. I buy my filter
cartridges from Presque Isles, and then nominal .45 10" cartridges are
around $35. each, but I dont remember the name. Not that many choices once
you look at them on their site.
I have found that if your wine is very clear, or you are prefiltering
such as with a 1 micron wound filter then the filters will last for at least
a couple hundred gallons or more. HTH
John Dixon
"LG1111" > wrote in message
...
> John, what brand of filter do you use? Is "Nominal" a brand name?
>
> Lee