Required accessory for ported Better Bottles. Use with a SimpleFlo valve (#7898) to transfer beer or wine by draining from a spigot instead of starting a siphon. The internal racking arm can be rotated on its Teflon-encapsulated o-rings and washers inside the Better Bottle to minimize the transfer of yeast and sediment. Made of the same PET plastic as the Better Bottles. Requires installation rod (#7897) to install.