I have a Hollis Prism2 CCR for sale. Roughly 4 yrs old. Lightly used, has 118 dives/ nearly 86 hrs on it. The entire unit is in the crate. Controller is a Petrel1 & has a HUD. Updated to the latest version of Shearwater firmware. Can come with original or small counterlungs, buyer's choice. Has original wing & Stainless steel backplate & harness. Included are two 23 cuft HP cylinders (O2 & Diluent) with inline valves. Hydro'd 7/17, recent visual inspection. Also included is a stand. Rebreather was serviced last year. Needs new sensors. Asking $3,800 Plus S & H. Will be heading to cave country just after the first of the year until Jan.15th & can deliver in the area, if needed. The rebreather is a spare. The buyer will need to show certification on the unit, or if not certified on the unit, have me send the DSV to a Prism2 instructor of their choice.