When an air devise is required for your aquarium, ELITE airline tubing is the perfect product. Ideal for use with air stones air actuated ornaments and air driven filters. Designed to remain supple and retain it's shape. When an air devise is required for your aquarium, ELITE airline tubing is the perfect product. Ideal for use with air stones air actuated ornaments and air driven filters. Designed to remain supple and retain it's shape.