Chemistry Hippie brings science to the art of essential oil extraction from plant matter. <br> <br> Perfect for any project where filtering plant material from your oil extract is your goal. <br> <br> The Chemistry Hippie filters screens are INSANELY TOUGH and blowout proof. You can boil them to help clean and sterilize the filters, and they'll last you forever with proper care. Re-use them over and over. <br> <br> Our filters come in a variety of micron sizes, including 25, 50, 100, and 150. Be sure you are ordering the micron size you want. <br> <br> Each package includes 6 sheets that are super tough and measure 5" X 5" (inches.) They have laser cut edges to keep them from easily tearing. <br> <br> If you are still using old-fashioned coffee filters, Stop! They easily tear, contaminating your concentrate. One Chemistry Hippie filter screen is stronger than any coffee filter, even if you stacked them 10 deep. There's no comparison. <br> <br> You owe it to yourself to try out Chemistry Hippie filter screens. <br> <br> If you want the best there is, you've found it. Chemistry Hippie filter screens - what the PROS use.