● PREMIUM MATERIALS & GREAT HEAT CONTROL: This pump dissipates heat more effectively with aluminum-alloy heat-radiating plates, and delivers excellent, long-lasting performance with an high-quality aluminum manifold and 100% copper outlet nozzle ● Maximum Air Pressure and Air Volume: VIVOSUN's powerful 32W electromagnetic motor produces exceptional air pressure (over 0.02 mpa) and sends a huge volume of air to the 6 adjustable valve outlets (compatible with 1/4" air lines) ● Set it and Forget it: Innovative material engineering on the steel engine cylinder and piston makes this pump perfectly energy-efficient and highly resistant to wear-and-tear so you can leave it going 24/7; recommended for outdoor use ● Quiet solution for hydroponics and fish tanks: This model's oil-free motor lubrication, low noise generation (under 60 decibels) and 1.5 m power cord make it the ideal pump for oxygenating an aquarium or plant roots in a hydroponics systems ● TOP PERFORMANCE: Pumping 60 liters of air per minute (16 gallons per minute) and rated for up to 1 years of service, we guarantee this pump is the reliable solution you're looking for; If you're not completely satisfied, just contact our attentive service team for a solution or a refund