Hailea ACO-009E.
Electro-magnetc air pump. High volume, low pressure. Non-oil lubricating design. The case is made of high-quality ZL 102 aluminum alloy. Designed for large or multiple aquariums.
• Flow ~2.5 L/sec. free flow
• Hose bib output for 10mm ID tubing.
• Hose bib input for 13mm ID tubing.
• Replaceable / washable filter.
• 120 Volt AC, 60 Hz
• Power Cord over 15 Foot Long
• Dimensions: 11.14" (L) x 2.78" (W) x 6.88" (H)
Note: They are designed for performance rather than low sound levels - they would be too loud for use in a living room for example.