From the product description, check product page for current description, price and availability:

This yeast collection container fits the 27 and 55 Liter FermZillas and is primarily used for collection and addition of hops and yeast via the butterfly valve. This collection container can also be used for yeast starters meaning that you can create the yeast starter in this collection container directly then attach to the valve of the FermZilla so you can pitch yeast without needing to open the lid.

The ports on the side of this collection container are the same as a standard coke bottle or soft drink bottle. The threads are designed to fit the carbonation caps C35 and D80. These carbonation caps will enable you to purge oxygen for dry hopping, attach carbonation stone and carbonate liquid in the FermZilla, oxygenate wort and more.

From the product description, check product page for current description, price and availability:

The Gen3 FermZilla Tri Conical features a 3” Tri-Clamp fitting to attach the dump valve, and a 2” Tri-Clamp fitting to attach the yeast collection vessel. This makes it easy to disassemble the fermenter for cleaning, and to remove and reattach the yeast collection vessel.

The FermZilla can be used in many ways -use it as a basic gravity fermenter with the ability to dump and harvest yeast, or as a pressure fermenter and or keg with optional Spunding Valve part C71 and Pressure Kit part C77, as a chilled fermenter with an optional Temp Twister and Cooling Kit, and even as a Hop Bong Pressure Kit, with the ability to add dry hops without adding oxygen.

Includes a lid with 35 PSI PRV valve, stainless stand, airlock, 1000 ml collection container with lid, and Tri Clamp fittings to assemble and use the fermenter.