The AquaBay M1 is actually two previous Thermaltake products skillfully married in a 5.25" drive bay mount, the CL-W0009 Water Level Indicator and the CL-W0012 Flow Indicator. If you add up the price of the flow and level indicators when purchased individually as compared to the M1, the cost savings is about 13 bucks. And you get the drive bay mount on top of that.



Link: Pimprig