Auto Syphon (Self-Priming Syphon) - New Improved Design - Various Options & Sizes. To use, first sterilise the Auto Syphon. No sucking (and possible inhaling) of liquid required! all versions are supplied with a bucket clip to hold the syphon in place and the bottling stick which fits onto the end of the PVC tube is perfect for bottling your brew so that the flow can be regulated as needed to make it easier to bottle your beer ot wine.