"CABLE SEAL" "CABLE SEAL" IS MADE OF E.P.D.M. RUBBER, ONE OF THE BEST OUTDOOR MATERIALS ON THE PLANET. "CABLE SEAL" WILL OUTLIVE THE SERVICE ENTRANCE CABLE THAT IT IS SEALING!! 100% RAINTIGHT AND WEATHERPROOF  EXCELLENT U.V. SUNLIGHT REJECTION EXCELLENT OZONE RESISTANCE HIGH TEMPERATURE RANGE 360°F LOW TEMPERATURE RANGE -85°F PUNCTURE RESISTANT