Quantity: onePower: 24 WDMaximum flow rate: 12,000 l/h, suitable for 120-150 cm aquariums[High-quality material] Made of high-quality plastic material, sturdy and durable. Simulate the ocean conditions required by marine fish.[Simulated marine environment] A wave maker for aquariums. Creates a smooth flow of water that gives the aquarium a feeling closer to the ocean, very easy to hide and quiet.[Large flow rate] 360 rotating wave, higher flow rate, lower power consumption. A special slot is built in to protect the motor.[Perfect circulation pump] Perfect wave machine that provides powerful circulation in the aquarium or aquarium. Stainless steel rotating shaft, suitable for fresh and salt water.[Application] It can improve water circulation and oxygenation, which is beneficial to the healthy growth of fish. Helps eliminate dead spots in marine aquariums. Suitable for fresh and salt water.Note: Customers may need to prepare their own European converters for use,"