Stainless Steel 8 Port Airline Manifold Stainless steel aquatic air pump manifold 8 Ports for added pond aeration. Use the airline manifold to split your air to air stones or bubblers in your aquarium or where you need to put air stones in different locations around the pond or filter. It allows you to vent off potential back pressure if you are not using all outlets. Connect the outlet of your air pump to the manifold. The air manifold is very important for two reasons, it gives us the ability to send air to various areas within the aquarium, pond or filter and allows us to vent off potential back pressure. This 6 way Airline manifold has valves which control the outlet of air to your air stones or diffusers. ? 5/16th (8mm) Standard Fittings ? Distributes Air Between Devices and Airstones ? Stainless Steel Construction ? 8 Ports - Each Port has on/off Valve We also sell 6 Port Airline Manifold, Check out our Store!! We sell many aquatic products online, check out our store! Terms and Conditions. We use all approved forms for accepting payments. Sales Tax will be added to all shipments based on regulations. We always try to combine purchases, please contact us directly for a personal service. You will be notified on the day that your goods have been dispatched via e-mail with tracking which is used on all purchases. Please note that if there are any problems, contact us first via e-mail giving full details of any problem along with your user ID. We use USPS and UPS as our chosen carriers shipments to Hawaii, Alaska Puerto Rico may incur surcharges, contact will be made to advise before shipment at which point the order can be canceled if desired. Orders placed on Saturday/Sunday Public Holidays will be processed next working day. We pride ourselves on excellent feedback, if any part of the buying experience is not to your satisfaction, please contact us to rectify before leaving feedback. By committing to buy you are agreeing to the Terms Conditions stated above.