This housing is 18 months old and comes with a spare main O-ring, 2 spare port O-rings, and replacement knobs for housing. I am also including an 8 in Dome port in flawless condition with cover and 5510.22 port body. This combo will accomodate 10-24 mm and 12-24 mm lens nikon lens. The kit also comes with two focus rings that will accomodate a variety of lenses. This system new from the factory is $1900. I am selling this complete system for $900 plus shipping if required.
