40pcs/CTN gel seal closure is weatherproofing system sealing 1/2" jumper cable to 1-5/8" feeder cable, which are exposed to outside enviroment. The housing contains an innovative gel material and provide an efficient IP68 moisture block Advantages quick install, just take seconds.easy removable & reusable.one step install, simple, don't need training.assure a unifom and good sealing jobs. ...