20*30mm Cylinder Aquarium air stone/Fish tank oxygen diffuser/bubble stone 50pcs a lot
|45 days Money back Returns accepted if product not as described, buyer pays return shipping; or keep the product & agree refund with seller.|
Guarantees: On-time Delivery 60 days
Advanced micro-hole bubble stone is made of sintered corundum from high temperature,it can produce micro bubbles(Diameter 100-500um),significantly improves the efficiency of gas absorption in the water and reduces gas consumption.
In Aquaculture and Aquarium, It increasing the breeding density and reducing fish stress response during live fish transportation;
In Wastewater Ttreatment, it supplementing oxygen and making use of carbon dioxide to control the PH value;
In Ozone water treatment,it diffusing the ozone gas to water efficiently,making high concentration ozonated water.
. Sintered by high temperature
. Durable, can be used for a long time
. Washable,when it is clogged with dirt or producing bubbles with low quantity,you can wash it for
. Color: Grey available.
.Gas connector: 4mm;
. Freshwater, saltwater aquarium and hydroponic use;
. Aquacultures and other industrial air or oxygen aeration;
. Ozone diffuse or mix to water for water treatment.
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|Shipping Company||Shipping Cost||Estimated Delivery Time|
|3 - 7 days|
|3 - 7 days|
|5 - 14 days|
|Post Air Mail||Free Shipping||15 - 45 days|
|Return Policy||If the product you receive is not as described or low quality, the seller promises that you may return it before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe) and receive a full refund. The return shipping fee will be paid by you. Or, you can choose to keep the product and agree the refund amount directly with the seller.
N.B.: If the seller provides the "Longer Protection" service on this product, you may ask for refund up to 15 days after order completion.
|Seller Service||On-time DeliveryIf you do not receive your purchase within 60 days, you can ask for a full refund before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe).|
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