REPLACEMENT OF BOOSTER PUMPSETS WITH CONTROL PANELS TO 60 BLOCKS OF FLATS AT BLOCKS 701 TO 718, 720 TO 731, 844 TO 866 ,902 TO 904, 906 TO 909 JURONG WEST AVENUE 5 AND STREET 71/72/81/91. (REF: CCKTC/CYC/19/7)