Thermal insulation blocks

Heat insulation block 27/33 kW, Viessmann 7818159 Burner No.:7141505, 7141505, 7141508, 7159723, 7171408, 7171411, 7176909, 7176912, 7242183, 7242184, 7516303, 7516304, 7516388, 7516639, 7516640, 7516649, 7517370, VM02702Manufacturer No.: 7819159