This product is the articulating arm for the SA-91 and SA-91-E fume absorbers. It is able to convert SA-9 and SA-9-E fume absorbers into the SA-91 and SA-91-E ones, respectively. This conversion kit features the following:

24- (60.7 cm) long pivoting arm makes it easy to optimize the position of the fume absorber without taking up much space
Compatible with the SA-9 and SA-9-E Fume absorbers