Check the listing for details. Aquarium Air Line Tubing Valve Kit * T-Valves+Control Valves+Connector Valves*. Condition: New. Listed at 5.99 USD. DESCRIPTION: 15 Total Pieces. 5x Three Way Clear Plastic T-Valves 5x Clear Air Control Valves. 5x Clear Air Line Tubing Connectors Easy To InstallLong lasting durability Fits Standard Air Line TubingGreat for making multiple air stones usage or corner filters run from one air pump while controlling air flow to the amount you need. Also great for turning two out takes from a single air pump into a stronger single air tube line. Air control valves lets you decide how much air power is needed per air line. Great for adding length to multiple air lines using our connectors. See our pictures above for creative designs and uses or use your own creativity. Combined Shipping On Multiple Orders.Free and Fast Shipping From Within the USA.Check out our other aquarium items currently up for sale here on Ebay.