Pur Survivor -06 Hand operated watermaker. At 2.5 lbs smallest hand operated desalinator; removes bacteria, viruses & other contaminates. 1 oz drinking water in less than 2 minutes at average pump rate of 40 strokes/min. 5"x8"x2.5". Had in our liferaft with old boat then with new boat/liferaft in our ditch bag for these years. Original sealed package from 1994. Never opened. Bargain priced to allow inspection and new membrane/parts. Unit is very expensive new. As is. Only $120 plus $13.65 flat rate priority mail.