Similar to the 680000 desiccator plug, this plug is slightly larger and longer than the 680000 and contains 7 grams of silica gel desiccant, making it a good choice for containers up to 500 cubic inches volume. The standard humidity indicator card supplied is divided into three pie-shaped segments that indicate 10%, 20% and 30% relative humidity.

This plug has 1" - 14 UNEF threads and an o-ring seal for use in a threaded boss. The black anodize finish provides excellent protection against most environments. The internal pressure rating is 22 psig maximum. Includes two (2) holes for safety/security wiring.

Note: Other cards available upon request.