Mk 15.5 electronically controlled, closed circuit, constant O2 partial pressure, mixed gas rebreather. Scrubber capacity 4.5 kgs. Nominal depth capability 150 metres. Water temp: -2 to +35 deg C. In excellent condition and regularly maintained/serviced by Australian importer (Colkan Int. P/L). One-only owner and unit has always been reliable and dependable. Asking price: $10,000 (AUD); about $7,700 (USD)