Reddit reviews Buchner Funnel, 11cm - Polypropylene, 2 Parts - Designed for 11-12.5cm Filter Paper - Stem Length, 8.5cm - Lightweight, Autoclavable - Eisco Labs

Thanks for the gold!

Just for that, here's a more detailed, complete list of what is needed to micron filter smaller amounts (1l solution), with links to the cheapest good option on amazon:

Vacuum flask - http://amzn.com/B005QDP1XC - This is just a flask with a tap for a line from a vacuum source.

Hand vacuum pump - http://amzn.com/B00657XV4O - This creates a vacuum, also is handy (lol!) when finishing extracts. Just take the tube from the end and stick it on the male port on the side of the vacuum flask. If you already have a brake caliper vacuum pump or electric pump those can be subbed for this.

Buchner funnel - http://amzn.com/B00BHLE6MO - a funnel, with a space for filter paper

Rubber collar - http://amzn.com/B0018S0WBK - forms a seal between the buchner funnel and the flask. Wet your finger and around both sides of the collar, place the collar on the flask, and the funnel on the collar, and firmly press them together. This will ensure a good seal.

Medium flow rate filter paper - http://amzn.com/B00YM3R7KW - and slow filter rate filter paper - http://amzn.com/B006T5AY24 - Medium is good enough for most, and takes less time to filter, but the slow will yield the highest quality. The slow filter paper link has multiple options, be sure to select "1.5 micrometer pore, 11cm diameter" to get the right size/type.

Once it's all assembled, just pour the extract/herb solution (slowly) into the funnel, while pumping away at the vacuum pump. The vacuum will keep things flowing and you'll be done sooner than if you just let it drip through a coffee filter.

Bonus tek - to make a vacuum chamber to polish your extract:

Take a small mason jar and make a hole in the lid, big enough for the tubing from the hand pump. Take a bit of that tubing, or similar from home depot etc, and hot glue it so that it goes through the lid and into the mason jar. Really lay on the hot glue until its gobbed up all around the hole, sealing it well. Let it cool. You can now place your extract on a small bit of parchment, place it in the jar, seal the lid, and hook the pump up to the tubing. When you pump and create a vacuum (as high as this model will go, just keep pumping until the gauge registers no change), microbubbles of solvent and air will foam up to the surface, smoothening and polishing your extract. Its not a necessity like it is with BHO etc, but it's still nice to do. I even do it to some of my rosin batches as it can help them budder up.

Chemistry Hippie | 25 Micron Screens 6-pack | Essential Oil Concentrate Filter | 5x5 Inch Sheets https://www.amazon.com/dp/B018V49HFA/ref=cm_sw_r_cp_api_5cAExbCJ8AC3K

Eisco Labs Polypropylene Buchner Funnel, 13cm, Designed for 11cm Filter Paper https://www.amazon.com/dp/B00BHLE6MO/ref=cm_sw_r_cp_api_agAExb2YAPW8P

^^ a funnel like that? Then I use filters? Right now it's sitting in a glass container in the freezer, hopefully I used the right ratio of everclear to wax, lol.