What you need is a Iwaki 30RZT the Z is for higher pressure. You can get a MD or WMD depending on your budget. Customaquatic has the WMD30RZT for 149.99. People say that the MD (japanese motor) is a little quiter and runs a little cooler. As I only have a WMD I can't say. As long as the input stays flooded it's very quiet. Customaquatic lists the MD30RZT at 218.99.
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