The Gloworm 0020014168 Valve replacement valve which is found on the Gloworm Flexicom and Ultracom boilers. You can find out which appliances this part is for
Glowworm FLEXICOM CX 24
Glowworm FLEXICOM CX 30
Glowworm FLEXICOM CX 35
Glowworm ULTRACOM 24 CX
Glowworm ULTRACOM 24 CXI
Glowworm ULTRACOM 30 CX
Glowworm ULTRACOM 30 CXI
Glowworm ULTRACOM 38 CXI