Hayward Perflex Flow Controller, Fits EC30/EC40/EC50, ECX1055
No. 20 Image ECX1055 Hayward Flow Controller Used on Hayward Perflex D.E. Filters (EC30/40/50) and Also Fits Hayward Regenex Filters. 1.7in diameter flow control disk is used after the check valve on the entrance to the filter, to restrict high water flow rates in excess of 40 gpm (EC40) or 50 gpm (EC50). If your pump produces higher flow rates, use this restriction washer to slow down the filtration and improve performance. See More Hayward Perflex Pool Filter parts in our Filter Parts Department.