Rohl C7076.22 Italian Kitchen 2.2 Gpm Green Check Valve Flow Restrictor For The C1458Speckit For The A1458Ws And A1461Ws Three Leg Bridge Faucets Also Used To Help Provide Higher Water Flow For The Ls64L Ls57L-2 And Ls59L-2 Faucets In Combination With The R42659A Aerator Inserts