This Close Coupling Kit is intended to join a low level type cistern to a close coupled pan. This kit is designed to join a cistern which does not have coupling holes to a coupled pan for flexibility in design & aesthetics. It is also highly regarded by experienced plumbers as a method of reducing the possibility of water leakage, as there are fewer holes in the cistern prone to leakage which need to be sealed (i.e. the coupling bolt holes which are not present in a low level type cistern).