Part No 5107339
GAS VALVE VK4105M Assembly   Fits 
Baxi COMBI HE 105, e 105, e 80
Baxi COMBI INSTANT HE 105, 105, HE 80, e 80
Baxi SYSTEM 35/60, Baxi SYSTEM 60/100
Main COMBI 24 HE,30 HE
Main HE SYSTEM 18, 24, 28
Potterton PERFORMA 24 ECO HE, 24 I HE, 28, 28I, 30HE
Potterton PERFORMA SYSTEM 12, 18, 24, 28