flojet pumps are the better of flojet / shurflo , i imo wouldnt bother with a flow control , if you was local to me i would take you to meet a few lads who have all gone onto flojet and dont use a controller ... im not certain but i think from previous post alex (who supplys ) dont bother with 1 , i could be wrong on this , but if im right and a supplier dont use the controller then what more can be said .