They also feature a self-draining collection cup which is removable. This air and water mixture is then injected under pressure into the reaction chamber where protein and other dissolved organics are removed while oxygenating your aquarium water. It's multi-pass design creates more usable contact time and therefore also creates the effective skimming action of a protein skimmer many times its size. The Multi Pass Venturi Protein Skimmer is available in both hang-on and sump models and is rated for aquariums up to 200 gal. The original version of the worlds best venturi driven protein skimmer features the patented Triple pass action in a unique compact design.
Triple pass increases the contact time between the air bubble and water for superior skimming.
Venturi air injection produces a consistant quantity of fine air bubbles ensuring a large surface area for adhesion of waster material. Tangential water inlet causes turbulent flow and a swirling motion that increases the mixing action of water and bubbles. Suitable for tanks up to 250 gallons. The unit is completely self-leveling and may be installed in or alongside the sump or aquarium. Made from ozone safe materials and designed for easy maintenance.