Concealed cistern standards?

[Michael Kilpatrick]

Hello all,

am I right or wrong in thinking that there is a uniform and standard arrangement for concealed toilet cisterns such that any cistern can be used with practically any back-to-wall toilet pan that is available in the UK?

Or, just to make life awkwards, is there more than one standard of fittings and flush pipe diameters, etc?

Michael

[Pete Verdon]

Seems to be fairly standard, with the exception of the spacing between the two big bolts that hold the pan on to the frame. There are two standards here, but many frames will have holes for both.

Pete