3'' Alu Locking Tube - 400mm
Tubes for the 2″, 3″, 4″, 5″, 6″, and 8″ Series Watertight Enclosures, available in a variety of lengths and in clear cast acrylic plastic and aluminum materials. These are the second generation of these tubes with precision machined O-ring interfaces, a locking cord, and anti-rotation feature. Rated to depths up to 950 meters.