4" Aluminum End Cap with 18X M10 Hole
End caps and flange caps for the 2″, 3″, 4″, 5″, 6″, and 8″ Series Watertight Enclosures. These are the second generation of these end caps and flange caps with precision machined O-ring interfaces, a locking cord, anti-rotation feature, and optional M10 holes for cable penetrators. Rated to depths up to 950 meters.