Fluidmaster Complete Cistern Repair Pack includes PRO550UK Fluidmaster Dual Flush Valve supplied with a flush button and 350mm cable. Fits both 1 1/2 and 2 flush outlets and the dual flush button fits top, front or side applications. The overflow height is adjustable from 8 1/2 to 13 1/2. The PRO45B toilet fill valve has a heavy duty brass shank that wont strip, corrode or crack and it cuts down on noise.