This is the Ported Better Bottle, meaning it HAS the hole in the side for the optional racking arm and valve.
Use the Better Bottle Ported Closure for the top (or a #10 stopper)

Better-Bottle^® PET carboys are:
1) Tough and essentially unbreakable,
2) Pure: Taste- and odor-free, BPA-free, DEHP-free, plasticizer-free,
3) Virtually impermeable to oxygen,
4) Clear and colorless,
5) Incredibly light weight, and
6) Easy to wash.
Better-Bottle carboys are not at all like other plastic carboys. The special PET from which these carboys are made is non-absorbing, non-porous, and non-wetting (hydrophobic), so it will not carry over flavors from one batch of wine or beer to the next and it is easier to clean and sanitize than glass or other plastics. Better-Bottle carboys are ideal for home winemaking and home brewing.


Designed for Convenience – Better-Bottle carboys are unbreakable, extremely light weight (about 1.5 lbs), and designed with textured grip ribs, so they are safe to use, easy to handle, and inexpensive to ship. They are also easy to store away when they are not in use. Their injection molded necks are wide, so filling is convenient; uniform, so a variety of closures fit consistently; and extra strong, so handles can be attached. All Better-Bottle carboys are available plain or ported for use with Better-Bottle Racking Adapters and quick-disconnect SimpleFlo valves, which eliminate the need for siphons and make oxygen-free racking simple.