Check the listing for details. Pelco EHX4EORKIT O-Ring Kit for EHX4E Explosion Proof Enclosure. Condition: New. Listed at 65.00 USD. Pelco EHX4EORKIT | For EX4HE series explosion proof housing | Technology: Analog SD / 960H | Device Type: O-ring Kits | Alarm I/O: 2/2 | O-Ring Kit for EHX4E enclosure. Buy Now. O-Ring Kit for EHX4E explosion proof enclosure. The EHX4EORKIT from Pelco is an O-ring replacement kit for EX4HE series explosion proof housing includes 1 O-ring (used for the rear plate seal only), a tube of O-ring lubricant, 2 bags of desiccant, and 4 spare rear plate attaching screws. The O-ring ensures that the pressure within the enclosure is maintained at the required level. Includes 1 O-ring (used for the rear plate seal only), a tube of O-ring lubricant, 2 bags of desiccant, and 4 spare rear plate attaching screwsFor EX4HE series explosion proof housingMaintenance of enclosure pressure at the required level