For sale is a used CWS Recsea RX100mkIV housing in good working condition. Serviced last year and checked out for a handful of dives. This durable plastic housing is a less expensive version of Recsea's compact aluminum housing, and works beautifully. Allows for use of the front dial and all pertinent buttons. Dual o-rings. Takes M67 screw in accessories, including flip diopter holders, wide angle wet lenses, and close up diopters. Allows for firing fiber optic TTL strobes. There are small marks on the housing, and the lens port is pretty clean. This houses the Sony RX100 iv, v and va. I have the mark V, not included. New, this was $530. Selling for $250 including fees and shipping. Returns accepted 30 days, you pay insured shipping and returns. Thanks!