🔧Baxi Duo-Tec HE Models. 🔧Duo-Tec Combi ErP Models. 24 Combi ErP – GC Nos 28 Combi ErP – GC Nos 33 Combi ErP – GC Nos 40 Combi ErP – GC Nos Duo Tec 24 HE – GC No: 47-075-23. Duo Tec 24 HE A (After Serial No. ).
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