Thermo Scientific 450iQ Instruction Manual page 248

Push both sides at once to release. Reverse and fix at the same position as
before. Applicable tube size is indicated on the back side.
6. Disconnect plumbing from inline fitting.
Note Do not disconnect from valve end.
L
7. Unfasten two captive hardware.
Figure 7–58. Perm Oven Replacement pt 2
8. Replace DMC permeation oven and assembly in reverse order.
450iQ Instruction Manual Thermo Scientific