Vaillant O-Ring, (x10) 0020107696 VAS 106/3 VAS 106/4 (R1,2), 156/4 R1,2 VC 107 E VC 110 E VC 110 XE VC 112 E VC 166+206+256 E VC 205+255 E VC 205+255/2 E VCW 204+254 XE VCW 204+254/2 XE VCW 205+255 E VCW 205+255/2 E VCW 206+256 E VPM 15+30 D VSC 126+196-C VSC 126+196-C R1 VSC 126+196-C R3 VSC 196-C R2 VSC 246-C 210 VSC 246-C R3 VSC S 196-C 200 VWL 141-171/3 S VWL 61-101/3 S VWL 62-102/3 S VWS 220+300+380+460/3 VWS 63-103/2 VWS 63-103/3 VWS 64-104/2 VWS 64-104/3 VWS/VWW 141-171/2 VWS/VWW 141-171/3 VWS/VWW 220-460/2 VWS/VWW 61-101/2 VWS/VWW 61-101/3 VWS/VWW 62-102/2 VWS/VWW 62-102/3 VWS/W 380-460/2 R1