Ancor 765004 Marine Grade Electrical Wire Seal (Round Cable, 1 to 3/0-Gauge, 3/4-Inch NPT, UV Black)
LIQUID TIGHT WIRE SEALS provide low cost watertight calbe entries into panels and junction boxes. UL and CSA approved to work with round and flat cable. Resistant to saltwater, gasoline, alcohol, ketones, and mineral oil. Safe underwater to 300ft. (150 PSIG). Description: Round AWG Range: #1-3/0 Min/Max: .51-.71 Clearance Hole: 1.05 NPT Size": 3/4