The Riello 40 GS20 Gas Burner + Dungs Gas Train 3/4″ MB 407/1 – RSD20. Riello Part No. 3755616. Riello Part No. 3970531. GS20 Gas Burner Single phase electric motor 230 V, 50 Hz. The gas train is Multibloc type, containing the main components in a single unit.
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