Previous Generations of Non-Electric Operators:
Direct Mount Operators
(3rd gen) NT B25000
Upgrade with EVO-28 operator
(5th gen) ENT B26000
Upgrade with EVO-28 operator
(7th gen) EVO-28
Current Direct Mount Operator
(4th gen) NTB B24000
Upgrade with EVO-28 operator
(6th gen) MTW-28
Upgrade with EVO-28 operator