Grohe AV1 New Style Pneumatic Toilet Cistern Flush Valve 38735000 Push Button This button requires a 16mm

This button requires a 16mm hole is used with the shroud and at least a 35mm hole if used without the shroud

Width: 180mm (Bell housing and stem)

Width: 130mm - Including base

the soft close mechanism tends to loosen

This button can also be found in some cisterns by Villeroy & Boch

Grohe AV1 New Style Pneumatic Toilet Cistern Flush Valve 38735000 Push Button This button requires a 16mmWith the Grohe AV1 flush valve's design you need not worry about removing the entire cistern to service the valve in future, just simply pull the valve upwards and the whole top mechanism just lifts right out. All that is needed then is to simply clip the new valve into place, set the float to your desired height, connect any other mechanisms that you need to and you're ready to go. Please note: The valve does not include a replacement socket for the