This is what I use for 1F:

https://www.amazon.com/gp/product/B006ZRBGSC/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1

This is what I use for 2F:

https://www.amazon.com/gp/product/B01CUJQTPI/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1

When I bottle for 2F, I pour all of the kombucha into a different bowl and clean out the 1 gallon jar after each brew so the yeast doesn't gather on the bottom. I am on my 5th batch, everything has been great so far.