A sealing member includes an elastomeric interior portion and a rigid exterior portion. At least one passage extends through the elastomeric interior portion from a first end to a second end of the sealing member. The passage is configured to receive at least one longitudinal member therein. The elastomeric interior portion is configured for sealing engagement with the longitudinal member extending therethrough, and the rigid exterior portion is configured for sealing engagement with an entry port of an enclosure.