Defro DBO 300 Wärmespeicher mit 3,2 m² Wärmetauscher – 300 Liter Vaillant 3x Tauchhülse100 Thermowell ½" ESBE 3x Tauchhülse100 Thermowell ½" 7x8mm length 100mm a complete connection package for the energy management area frost free No shut off device or cross section reduction may be installed between the storage tank and the safety valve
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