Vendeur: williamh9784 (2.054) 100%, Lieu où se trouve: GB, Lieu de livraison: GB et de nombreux autres pays, Numéro de l'objet: 252580664629 Type: A.I.U. Air Injection Unit, Brand: Unbranded, MPN: Does Not Apply, Country/Region of Manufacture: United Kingdom, Les Détails: Hydroponic 13.5"x 9.5"Air Injection units for any DWC/system, Aquarium Aeration Diffuser Bubbler Please watch video at the bottom of this page This system is designed to give you more air and air where the average air stones dont go if you buy the right size AIU Air Injection Unit for your Pot, Bucket,Tote,or tank, there will be no dead areas and will keep your oxygen levels the same all the way through your system creating strong clean rootsThe AIU Produces much smaller bubbles than the average air stone.air stones make a lot of bubbles but only in a small areathis system gives bubbles to all of the areasits time to drag air stones into the 21st century.These units are very easy to cleanPLEASE REMEMBER WHEN ORDERING THE SIZE UNIT YOU WANT INCLUDES THE WEIGHTSConnection to air inlet is 4mm and can be used with 1 or 2 air inlets(2 is best) they will be sent out with 2 inlets as in pictures above also included will be a straight connector if you want to take one inlet out and replace it with straight connector.All weights are made with A4 MARINE GRADE STAINLESS STEEL.If you are looking for a different size unit for your plant pots, totes,or containers let me know by ebay mail. all units will be delivered with the metal weights unattached foryou to put on yourself if i were to put them on and send them it wouldmore than double the postage cost.COPY AND PASTE ADDRESS BELOW TO SEE VIDEO OF UNIT WORKINGhttps://www.youtube.com/watch?v=saUrQ2fw3nQ&t=36s air unit used in video is a 13.5" x 9.5" A question i get asked most is do they come as a kit for customers to make up themselveslike others that sell them on ebayAnswer no they get sent out 99% made up you just have to put weights on 2min job.why pay for something then have to make it yourself. Thanks for looking. Check out my other items!