one hundred foot No Spill Blank and Fill Aquarium Repairs Machine. Works with kitchen tap to siphon water from tank instantly into the sink. No buckets required! Replenish the tank with water from the tap (freshwater most effective) for extremely-fast water adjustments even as saving water with an effective 7 to 1 suction ratio. Python tubing is synthetic of FDA authorized nonporous UV stabilized subject material which gets rid of the potential for including bad chemical pollutants into your tank.