BHO Silk-screen Concentrate Filter, 120 Micron
These filter's measure approximately 8"X8",they are intended to be placed on the end of  BHO extraction tubes. They are extremely durable, and will perform for a lifetime if properly cared for. Coffee-filter's have a tendency to tear, releasing plant matter into your concentrate. If you want to produce top-quality BHO, you must use a silk-screen comparable to these.