Simple single stroke action draws a siphon without disturbing sediment. Simple to sanitize with removable tip prevents siphoning of sediment. We recommend you purchase "Plastic tubing 7.9mm" to attach to this syphon as depicted in the photo. Instructions - 1. Sanitize and rinse your Easy-Siphon, 2. Attach the curved siphon to the tubing hose ( to be purchased separately) 3. Submerge the end of Easy-Siphon into your container. 4. Pull the inner tube up until the liquid fills the tube and pump the inner tube down and siphon will begin. ( does not include the glass carboy depicted )