Vaillant O-Ring, (x10) 981175 MAG 19/2 GXI MAG 19/2 GXI R1 MAG 19/2 XI MAG 19/2 XI R1 MAG 19/2 XIP MAG 19/2 XZ MAG 19/2 XZ R1 MAG 19/2 XZ-C MAG 19/2 XZ-C R1 MAG 24/2 GXI MAG 24/2 GXI R1 MAG 24/2 XI MAG 24/2 XI R1 MAG 24/2 XIP MAG 24/2 XZ MAG 24/2 XZ R1 MAG 275/9 X MAG 275-350/11 XZ-C MAG 275-400/12 XIP MAG 275-400/12 XZ MAG 275-400/9 XV MAG 275-400/9 XW MAG-sine 250/9 W MAG-sine 325/9 W MAG-turbo 250/10 W MAG-turbo 275+350/10 EW VC 105 E VC 105/2 E VC 107 E VC 166+206+256 E VC 194 XE-C VC 194/2 XE-C VC 195 E-C VC 195/2 E-C VC 204+254 XE VC 204+254/2 XE VC 205+255 E VC 205+255/2 E VC 64+104 XE VC 64+104/2 XE VC 66+106 E VCW 180 K XE VCW 180+240+280 XE VCW 182+242+282 E VCW 184+244 XE VCW 185+245 E VCW 194 XE-C VCW 194/2 XE-C VCW 195 E-C VCW 195/2 E-C VCW 204+254 XE VCW 204+254/2 XE VCW 205+255 E VCW 205+255/2 E VCW 206+256 E