Adjustable Bubble Refiner, Aquarium Air Stone Fish Tank Nano Bubble Stone Kit with Control Valve Quiet Super-High Dissolved Oxygen Diffuser Makes Super Tiny Bubbles for Fish Tank and Hydroponic

Overview★★★Aquarium Adjustable Bubble Refiner with Control Valve for Fish Tank and Hydroponic★★★

Features:
☑Made of high-quality plastic material, durable and wear-resistant.
☑High-quality rubber suction cups, easy to adsorb in the aquarium, beautiful and practical.
☑The bubbles are uniform, small and dense, and the oxygen-enhancing effect is good.
☑Easy-to-use finger knob allows you to adjust the size of the air bubbles.
☑Stable suction cup, can be firmly fixed, do not fall off. Replaceable cotton sheet, easy to disassemble and wash.
☑Install air valve to prevent water back-flow into the air pump.
☑High Dissolved Oxygen Rate: Compared with ordinary bubble stone, the nano bubble stone emits more bubbles, and the gas and the water surface are more widely contacted, which makes the dissolved oxygen amount larger.

Range of Use: 
Office, fish tank, decoration, hydroponic environment. Freshwater and saltwater can do.

Package Includes: 
2 × Nano air disc stone
2 X Exhaust Gasket
2 × suction cups

Tips:
It needs to be used with an oxygen pump connected (air pump not included).
Connect Air Hose Size: Inner diameter: 1/6” (4 mm), Outer diameter: 0.23"(6mm), Notes: Not including air hose.

How to maintain?
Frequent cleaning and replace the exhaust gasket can get the biggest output, increase of service life. 

Notice:
1.The deeper the nano-disk is placed in the fish tank, the gas pump watts may need to be increased to drive) .
2.Please allow a little size error due to hand measure.
3.Due to the light and screen difference, the item's color may be slightly different from the pictures. Thank you for your understanding.