Tuthill, Measuring Instruments, models:

FILL-RITE 820	Parts And Technical Service Manual
FILL-RITE TN700 Series	Owners Installation, Operation, And Safety Manual
FILL-RITE TT10AN	Operation And Safety Manual
Fill-Rite 900 Series	Owners Installation, Operation, And Safety Manual
Fill-Rite 900CDP	Owners Installation, Operation, And Safety Manual
Sotera 900 Series	Owner'S Operation & Safety Manual
Sotera TS06AE71	Installation, Operation & Parts Manual
TT10P	Operation And Safety Manual