The regulator is left hand thread.
Disposable Oxygen tanks Not Included

Disposable Oxygen tanks (our item # 53411) are available for pick up in our shop. We do not ship these tanks. Each disposable oxygen tank will last for approximately 10-15 five gallon batches.

About the inline filters: There are two sides to the filter - an "in" and an "out". The direction you use doesn't matter, however, you want to take note of which way you first push air through it and always keep it that way. There is an arrow on the edge of the filter housing that we use to keep the air flow going one direction when using it. The filter should never get wet, so don't try and sanitize it by dunking it in sanitizer. Keep the outside of it clean as any other brewing accessory. To store the filter, use a little tinfoil on the "In" of the filter and store in a zip-lock bag.