Impeller 146 x 42 mm, Viessmann 9521937
Rotrix burners, Rotrix EV burners.
Burner No.: 7318733, 7318780, 7318781, 7318782, 7318791, 7318792, 7318793, 7318830,
7318831, 7318832, 7318840, 7318841, 7318842, 7318860, 7318861, 7318862, 7318863,
7318890, 7318891, 7318892, 7318903, 7318904, 7318905, 7318920, 7318921, 7318922,
7318950, 7318951, 7318952, 7318985, 7318986, 7318987, 7328168, 7328169, 7328170,
7328184, 7328185, 7328186, 7718780, 7718782
Manufacturer No.: 9521937
