part 1941780 Head Annovi Reverberi code 1941780 Details Annovi Reverberi number1941780 DescriptionHead ItalianTestaQty per pump1 Fits these pumps Annovi Reverberi WHW 4 WHW 15.20 NWHW 21.15 NWHW 26.15 NWHW 32.20 N