Protect the front element of your AquaTech lens port for underwater camera housings with the large Dome Port Cover. It stretches to fit over the front element when you're not shooting, safeguarding it against scratches and other damage while also preventing the buildup of dust and dirt. The cover is crafted from flexible, 4.5mm neoprene, which has been laminated inside and out with a layer of tough, abrasion-resistant nylon jersey fabric for extra protection. It has a diameter of 9" to allow it to accommodate a variety of large domes, including the PD-85 and P-145.