Vaillant O-Ring, (x10) 981170 VC 104/3-E VC 104/4-7 A VC 104/4-7 A R6 VC 105 E VC 105/2 E VC 105/3-E (R1) VC 194/3-C VC 194/4-5 (R1), 104+204+254/4-7 (R1,2) VC 195 E-C VC 195/2 E-C VC 195/3-C (R1) VC 204+254/3-E VC 205+255 E VC 205+255/2 E VC 205-255/3-E (R1) VC 95+195+245/4-5 (R1) VCC 194/4-5 120 R6 VCW 194 XE-C VCW 194/2 XE-C VCW 194+244/3-C VCW 194+244/4-5 (R1), 204+254/4-7 (R1,2) VCW 194+244/4-5 A R6, 204+254/4-7 A R6 VCW 194+244/4-5 A, VCW 204+254+/4-7 A VCW 195 E-C VCW 195/2 E-C VCW 195/3-C (R1) VCW 195+245/4-5 (R1) VCW 204+254 XE VCW 204+254/2 XE VCW 204+254/3-E VCW 205+255 E VCW 205+255/2 E VCW 205+255/3-E (R1) VCW 206+256 E VSC 194-C 150 (R1) VWL 35/4 S 230V VWL 35/4 S 230V R1 VWS 36/4 230V VWS 36/4 230V R1 VWS 36/4.1 230V