Product details:

Offering reliable and heavy duty operation, the TOM Stellar Air Pump S-40 from KollerCraft is ideal for aquariums sized from 40 to 55 gallons. Designed for smooth and quite operation, the S-40 maintains high oxygen levels while providing water movement to keep fish healthy. It features strong, long lasting diaphragms plus durable silicone flappers that provide many years of dependable, trouble-free use. It's great for use with action ornaments, undergravel filters, airstones, and bubble wands. The S-40 has two air port outlets, a 1.41 liter-per-minute air volume (per outlet), a 2.9 PSI air pressure rating (per outlet), and a 3.2-watt energy consumption rating. In addition to its popular desktop aquariums, KollerCraft also offers TOM aquarium filters and accessories, and Repitat reptile habitats.