My interest would lie in:-
1) The P/Q curves for Hydor L20, Hydor L30, Eheim 1048, and Eheim 1250 . A comparison to be posted in your thread
http://forums.procooling.com/vbb/sho...?threadid=5068
2) Data for the Swiftech MCW462-UH. For some attempt at cross-correlation with Bill's data -
http://thermal-management-testing.co...st_results.htm