This aluminum tube for the 4″ Series enclosure has an increased 400m (1,312 ft) depth rating and hard anodized finish.
This aluminum tube is for use with the Watertight Enclosure for ROV/AUV (4″ Series). It has a significantly increased depth rating compared to the acrylic tube. Note that the inside of the tube is bored out to minimize weight.
1 x 4″ Series Aluminum Tube (11.75″, 298mm)