Check the listing for details. UPETTOOLS Aquarium Air Stone Fish Tank Nano Bubble Kit with Control.... Color: Does not apply, Condition: New. Listed at 17.10 USD. UPETTOOLS Aquarium Air Stone Fish Tank Nano Bubble Kit with Control... 【Produces Small Dense Bubbles Quietly】 This aquarium air bubble stone which can create a very dense cloud of small bubbles quietly. when the bubbles burst into the water, the sound is quieter. Create lots of thin bubbles in fish tank, make dazzling curtain effect.【Double Oxygen Dissolving Rate】Great to add oxygen to your hydroponics growing system, Increase oxygen levels, lower CO2 and raise PH.【Easy to Use】2 Suction cup makes the air stone adsorbed on the tank firmly. Durable, great for home, office fish tank, aquarium and hydroponics nutrient tanks.【Adjustable】If You Need the Very Dense Cloud of Small Bubbles, Please Adjust the Air Pump by Hand.The air volume of this nano aquarium bubbler can be adjusted by the control valve.【3 Accessories】 This fantastic aquarium stone kit includes a 35mm Nano air disc stone, 1 control valve, 2 suction cups. suitable for 3 to 15 Gal aquarium and 1.5-3W air pump. Shipping We offer FREE shipping on all orders! We ship within Three business days of payment, usually sooner. We use a selection of shipping services such as UPS, FedEx, USPS etc. We only ship to the lower 48 states, no APO/FPO addresses or PO Boxes allowed. Local pickups and combined shipping options are not provided at this time. Return You can return a product for up to 30 days from the date you purchased it. Any product you return must be in the same condition you received it and in the original packaging. Please keep the receipt. Payment We accept payment by any of the following methods: PayPal Please pay as soon as possible after winning an auction, as that will allow us to post your item to you sooner! Feedback Customer satisfaction is very important to us. If you have any problem with your order, please contact us and we will do our best to make you satisfied. Contact Us If you have any queries, please contact us via ebay. We usually respond within 24 hours on weekdays. Please visit our eBay store to check out other items for sale!