Vaillant 0020041905 Original Air Pressure Switch Boiler

Vaillant - Model Code Manufacturer Vm 242/4-5 20041905 Vm 242/4-5 R2 20041905 Vm 282/4-5 20041905 Vm 282/4-5 R2 20041905 Vmw 21/245/4-5 20041905 Vmw 255/4-7 20041905 Vmw 255/4-7 R3 20041905 Vmw 282/4-3 20041905 Vmw 282/4-3 R1 20041905 Vmw 282/4-3 R2 20041905 Vmw25547R3 0020041905 Vmw28243 0020041905 Vm24245 0020041905 21/245/4-3 R3 20041905 21/245/4-5 R3 20041905 24/282/4-5 Rv 20041905 24/282/4-5 Rv R 20041905 28/322/4-5 Rv 20041905 28/322/4-5 Rv R 20041905 32/362/3-5 Rv 20041905 32/362/3-5 Rv R 20041905