Thought I would pass this on to guys/gals looking for overflows Lifereef is top notch but EXPENSIVE, just placed an Eshopps 1000 on my tank from petsolutions paid 8o bucks rather than two hundred from Jeff, flows great, well made , tested no problems x several starts and restarts and VERY QUIET, IMO with overflows eshopps and lifereef are now fairly safe and reliable overflows and paid 110 dollars less for the Eshopps, PETSOlUTIONs great compnay had it in two days, GOOD LUCK!!