895A has both connecting link and pivot joint for easy
operation of air extractors and splitter dampers.
895B is similar to 895A but has no connecting link or
895C has neither connecting link nor pivot joint but
includes an angle bracket which allows this unit to be installed in almost any location.
896C is that portion of the unit below the duct and
can be used together with the Young 1200 right angle worm gear regulator to operate a round or rectangular damper.
900A air split regulator is similar to 900 except that it does not include 3/8-16 threaded brass rod.