Apollo CM Block II Environmental Control System (ECS) Glycol Electronic Control, measuring 6.5 x 5.75 x 1.5, with power connector and Glenair, Inc. cover labeled “G2209–16R.” Stamp-dated August 7, 1968, with an affixed warning label, “Dielectric Test Completed.” In fine condition. Designed to provide the flight crew with a conditioned and life-supporting environment, the ECS operated continuously throughout all Apollo mission phases, and provided three major functions: spacecraft atmosphere control, water management, and thermal control.
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