This 4 micron grade filter pad is only for beer that has fallen very clear, and fining with Instant Isinglass is recommended before using to prevent clogging the filter halfway through a 5 gallon batch. These are disposable - you will need two pads per 5 gallon batch of beer. Made in USA by Gusmer. These 8.75" filter pads fit our Q73 Plate Filter.
For wine, we recommend these are your primary filter pad. You can also use 1 micron pads for wine that has fallen clear with good results.
4 MICRON GUSMER FILTER PAD
It works great and thank you.