Durso Standpipes Silence Your Overflows!

This is the best invention yet! I have a 1.5 inch bulkhead and have this standpipe and I will tell you I will never have another standpipe without one. I first installed my tank in the living room and couldn't bare the noise. It sounded like an awful high pitched water drain. I installed a Durso Standpipe and the only thing loud was my Hydor Koralia 4. THAT'S IMPRESSIVE!