4500PSI High Pressure Electric Air Compressor Scuba Diving Pump Water Cooling The oil-water filter is bigger and the filtering effect is better Directly inflate the diving cylinder without air filter Water-cooled submersible breathing high-peable diving cylinder, with activated carbon filter, pure output. 110V Electric Air Compressor Diving Pump 30MPA Specifications: Voltage: 110-130v, 60Hz Rated power:1.8kw Motor speed: 2800r / min Working noise: 70dB Air output: 130L / min Cooling mode: water cooling Compression level: secondary compression Lubrication method: splash type Motor material: all copper coil Cylinder head material: cast aluminum Shell material: Steel Pressure range: 0-40MPa Working pressure: 0-30mpa (4500psi) Maximum temperature: 80? Connector type: 8mm quick connect fem.