The last time, it was just under seven feet in a Lian-Li PC-v2100. However, I've reconfigured the internal space and with the new Iwaki MD-20RZ I just ordered and the new res I'm building I'm hoping to get it down to about five feet--even with the Dwyer flowmeter in the loop. I may pull the flowmeter after testing or leave it in for bling factor, it is pretty and unusual.