Product review (4 stars): I would like it if this came with a different option for ...
Works quite well considering manual pumps from commercial suppliers are the same cost.  I would like it if this came with a different option for the outlet side.  I had to take off the current fitting and replace with a liquid side disconnect.  Not a huge deal as it works quite well for my needs.

Best part is that I can circulate really easily by placing tubing from the outlet from my faucet into the top of the pump housing.  Much easier and cheaper than having to use CO2.