had the previous model to 600 am satisfied with both absolutely tight the rubber ring and a few things have been changed in the new model So far, he is very quiet, almost inaudible since the date of purchase .......... Hoses are also good for hydor 200 watt heater ........... hint the finely flowing top and leave in a mat from the aquashop.gekaufte .... slightly thicker's for a couple of euros complete I've already made the erstenso even better then filters life is increased by
