7", 8", 8"+, 9", 9 + Diameter Bubbler Rings LARGE 18mm THICK Air Injection diffuser 4 Ponds large Aquariums Hydroponic Buckets / TanksThis 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 POND there will be no dead areas and will keep your oxygen levels the same all the way through your system.This LARGE 18mm THICK AIU Produces much smaller bubbles than the average air stone the unit is held at the bottom of your bucket tote or pond by 3 suction cups, air inlet connection is 4mm also there are 2 ratchet clamps on the air inlet pipes to make sure there is no air escaping if you don t see the size or shape you want see my other listings or email,These units are suitable for ponds to oxygenate them especially in times of hot weather and helps prevent frost and ice in the winter And are very good for the health of your fish also they look good to.NOTE The 8"+ and 9"+ are the units with the bar across the middle.Note-You will need 7.5" diameter of flat surface for the 7" ring 8.5” diameter of flat surface for the 8” ring 9.5" diameter of flat surface for the 9" ring If you do not see the size or shape unit you want email and i will list it for youThere are no set rules on air Ltrs per minBut would recommend at least 6 to 7 Ltrs per minute or more ( this is a guide only ) I always say you can’t have to much oxygen Always invest in a quality air pump.
CHECK OUT MY NEW WEIGHTED BUBBLE RINGS IN MY LISTINGS
Please note sucker cups may be white or black whatever is in stock at the time