It won"t help you pump up the jam, but the Marina Cool Air Pump will pump up your aquarium. Don"t let the ultra quiet operation fool you, the output is reliable and provides perfect oxygenation. This single outlet pump adds movement and turbulence for air stones, air curtains, or air-actuated ornaments. About Marina Dedicated to providing a wide variety of friendly and affordable aquarium products for all types of fish keeping, Marina’s extensive product line has something for every fish hobbyist. Newbies love the ease and convenience of Marina’s fish starter kits, and those with experience appreciate the reliable efficiency of their filters and heaters. A varied selection of colorful, creative decorations such as gravel, plants, and ornaments, provide a gorgeous underwater environment. A vast array of maintenance and breeding accessories are practical, reliable, and timesaving so you can spend more time enjoying your aquarium and less time cleaning it. * Combines high performance output with quiet operation * Powerful air pump with single outlet * Ideal for aquariums up to 5.5-gallon capacity * Provides more oxygen and airflow to your aquarium * Dimensions: .5L x 1W x 6H inches