HelloWe need to order diaphragm kits for the ZSFM Deluge Valves that was suppleid and installed 2 years ago.Please send me an offer for diaphragm kit for the following sizes of the ZSFM Deluge Valve :-a) 4 : 3 sets of Diaphragm Kitb) 6 : 1 set of Diaphragm KitKindly send your offer byto Best Regards,Chong Y.K Show More