This 3/8 Auto Siphon with Tubing (5476KIT) utilizes an easy pump action to give you the power to easily transfer from one vessel to another with a single stroke. Use of a siphon helps to keep from disturbing sediment during the transfer process. It can be used with both buckets and carboys and only requires a few inches of liquid. Easy to clean and sanitize. The included tubing measures 5' x 5/16 ID.