Siphon Spray Wort Aerator
$ 3.99

This is one of the most cost effective ways to increase dissolved oxygen in your wort without having to rock or shake a heavy fermenter.

Simply attach this aerator/diffuser to the end of your transfer tubing when filling your fermenter.

Works with 3/8" tubing.

While this does not work as well as a pump or tank driven aeration system, it is still better than shaking the carboy or or nothing at all.