Used it for a couple months and it worked great. replaced it with a spectrapure ato because it came with a peristaltic pump. $75 shipped.
http://www.marinedepot.com/Hydor_Sm...op_Off_Units-Hydor_USA-HD01043-FIDPAT-vi.html
http://www.marinedepot.com/Hydor_Sm...op_Off_Units-Hydor_USA-HD01043-FIDPAT-vi.html