I searched the oil filters at Advance till I found one that would thread onto a 1/2" pipe. I tapped a piece of 1/2" plate for the 1/2" pipe and threaded the pipe thru the plate into the filter (with a reducing fitting on the other side of the pipe for the solvent hose from the pump). I then tapped a 1/4" hole off center and added a 1/4" nipple for the outlet connection. So I have a filter for less than $10.00.
