The elite "t" connector allows you to split air coming from the air pump into two even and constant air streams to separate air-driven devises in your aquarium. The plastic and non-corrosive connector is safe for use in salt water aquariums. 3-way "t" connector fits standard air tubing. This product weighs 0.01-pound. Measures 1/5-inch length by 2-8/9-inch width by 4-inch height.