Description Discontinued! Rebuilt pulsator for S Original Surge pulsators. These pulsators are 70-90 years old and we no longer sell or service the S models A better option is: We recommend you order the lid and pulsator combination at the link below. The New pulsators are long life requiring only a fraction of the maintenance of the old metal pulsators. Model is determined by the FIRST LETTER of the serial number on the bottom of your pulsator. Simply remove your metal pulsator and turn it over to see the serial number. This pulsator replaces S models S model pulsators were sold on Surge bucket milkers from 1921 to 1960
