All-In-One Aquarium Airline Tubing Kit Instead of searching for all the right pieces separately and hoping that they will work together, take the smarter and simpler route by choosing the all-in-one Aquarium Airline Tubing Kit from . This complete kit has all the parts that you will need to connect your air stones to your aquarium’s air pump. Included is six full feet of high quality plastic airline tubing in the standard 3/16” inner diameter, two straight connectors, two T-connectors, and six secure three-way suction cups. The set also comes complete with two functional and compact 1.2” air stones in a cylinder shape, along with two non-return check valves that restrict any backflow that could adversely impact the air pump or other equipment. All of these parts fit perfectly together, conveniently saving you the time and trouble of finding matching accessories from various suppliers. Key Selling Points: 6 feet of clear, flexible 3/16" plastic tubing Works with self-assembly CO2 diffuser setups Includes air stones, connectors, valves and suction cups needed for installation Suitable for both freshwater and saltwater tanks How to Install your Airline Tubing When your Aquarium Airline Tubing Set first arrives, check all of the pieces to ensure that each piece is there. Begin by determining where in your aquarium you would like to add the air stones and if you would like to add one or two, as the kit provides enough components to connect two air stones. Connect the 3/16” diameter standard fit tubing into your air pump and then add a check value to the tubing. Includes Necessary Pieces For Airline Setup --- All-inclusive and ready to install, the Aquarium Airline Tubing Set contains all the required parts needed to set up your air pump system. Each kit comes complete with high quality connectors and check valves, secure suction cups, two air stones and 6 feet of clear airline tubing. Flexible Plastic Tubing --- It is crucial that the airline tubing in your water pump system is made with a durable and reliable plastic material that is bendable. The 3/16” airline tubing from is strong enough not to break under pressure, yet flexible enough to wrap around your aquarium equipment without getting snagged or affecting the air flow. Flexible Plastic Tubing --- It is crucial that the airline tubing in your water pump system is made with a durable and reliable plastic material that is bendable. The 3/16” airline tubing from is strong enough not to break under pressure, yet flexible enough to wrap around your aquarium equipment without getting snagged or affecting the air flow. Flexible Plastic Tubing --- All of the components of the Aquarium Airline Tubing Set are designed to be compact and discreet to add very little distraction to your underwater environment. The airline tubing, suction cups, and connectors are transparent while the valves and air stones are large enough to do their job, but small enough to stay out of sight. Practical Uses Outside The Aquarium --- Even outside of your aquarium, the multi-purpose components of the Airline Tubing Kit have many practical uses. The clear plastic tubing can be used to replace the piping in water dispensers, espresso machines and fancy coffee makers.