If so what was the oil to alcohol percentage and what level of filtration?. I am having no luck with them at all. I have to press so hard it keeps blowing past the gasket. I even made a solid metal push rod and reinforced the outer sleeve and still get blow by. I am using a 3 part alcohol to one part oil mix at 105 degree on the 0.22um and the 0.45um and it filters a little very slow then stops. Trying to lighten the color with the least waste of product.
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I used them to make Testosterone Propionate out of Cattle implants. PATIENCE IS KEY.