hpdmc oil-free hookah dive system 12v storage battery drive(battery not included) serface vacuum pump with 1x50 ft hose & 1xregulator / respirator for snorkeling (550w) hpdmc product feature<br> hpdmc scu80 series oil-less pump with 30m / 50ft hose and respirator, dive system compressor is an ideal choice for deep water operation and snorkling.<p> it's high pressure air compressor, compresses atmosphere air go to pressure 8bar, after be purified and separated by the filter and separator.<p> it discharge clean air accords to gb18435-2001 breathing air standard, the compact dimensions make it very easy to transport and operate, strong security and reliability.<p> product specification<br> - discharge rate: 60l/min; 2.0cfm<br> - voltage: dc 12v storage battery drive ( not included )<br> - power: 0.75hp/550w<br> - lubricating oil: oil free<br> - suction pressure: atmosphere<br> - working pressure: 8bar<br> - media: air<br> - no.of stage and cylinder: 1<br> - receiver tank: 10 liters stainless steel<br> - outlet: 2 ports<br> - cooling: air cooled<br> - driven: belt driven<br> - shout down:manual stop<br> - protection:safety valve<br> - noise: less than 55db(a)<br> - dimension: 500 x 450 x 450mm / 19.7 x 17.7 x 17.7 inch<br> - weight: 22kg / 55lb<p> product listi<br> 1x electric air pump<br> 1x 30 metes hose<br> 1x respirator<p> note<br> the motor have overheat protection device, when it rise to a certain temperature, it remains the same. but we usually advise customers not to use it too long, it is best to use a period of time after a break, this can extend the life of the motor.