50mm x 1/8 Back 4Bar Pres. Guage Part No: 87161423580
Pump Part No: 8716120411
Printed Circuit Board with Back Panel Part No: 8716117079
3Bar Safety Relief Valve Part No: 87174010120
WB6 Burner Gasket Part No: 87161105340
Flexible Hose Part No: 87161133050
848 Sigma ROHS Compliant Gas Valve Part No: 871860004A0
O-Ring Part No: 87161138510
DHW Inlet Pipe Part No: 87161064260
Flow Manifold Part No: 87161050930