The new products have an E-T-A Ratio of around 60 to one and can produce 1500 lts of air per hour whilst using only 25W of power. Compare this with the current Deltec modified Eheim pumps, (already renound for their performance), which only produce 600 lts of air for 36W of power and you will understand why we are so excited.The TC name describes the special Twin Chamber design of the bubble chamber which is patented and has the benefit of pressurising the pumps for higher performance and ensures that only unskimmed water passes through he pump rather than reskimming and reprocessing water in the chamber.The new bubble plate design allows the height of the skimmers to be reduced compared with the current range to allow them to fit in a greater number of installations and cabinets. The primary use of the bubble chamber is to prevent turbulence from the skimmer body and neck as turbulence can pull waste loaded bubbles back into the water column causing a reduction in efficiency. The air to water ratio is so high that there is almost immediate reaction with the waste therefore there is no requirement for the tall reaction chambers found on some low air skimmers thus keeping the units compact.Technical DataExternal VersionThe total height measurement includes around 20mm for cup removalSignificantly exceeds performance of AP902 (1200 lts of air - 230V)Footprint: 350mm by 290 mmFootprint plus pipework: 450mm by 318mmHeight under outlet pipe: 268mmTotal air produced: 1500 - 1700 lts/hourPower consumption: 29-34WNeck diameter: 140mmPatented Twn Chamber bubble chamberTank Suitability: 2000 lts heavy stocking 2400 lts normal stockingConnections: 32mm in 50mm outRemote drain of skimmer cupAir silencersMicro adjustable skimmer settingHigh water flow through the skimmer 3600 ltrs/hrOptional self cleaning systemNew colour schemeCan be gravity or pump fed (supply pump not supplied).Article no 80250