Package Dimensions : 20.4 x 18.8 x 3.3 cm; 291 Grams
ASIN : B07W7QBKW2
Product Features :
Package contains : 18 x check valves, 6 x air stones, 12 x suction cup clips, 12 x I-connectors and 12 x T-connectors, complete tools match well with your fish tank.
Check valve ? the check valve is great for aquarium and fish tank; You can put it in the airline tube between air pump and aquarium water to prevent water back into the air pump during a power outage.
Bubble release air stones : approx 19 (D) x43mm (H) /0.75 x 1.7inch, they are durable and can produce fine bubbles continuously to diffuse oxygen efficiently in your fish tank.
24pcs connectors (Straight & T-shape) : Perfectly connect standard tubing, T-connector allows you to combine two inputs to create one output with dual outlet pumps.
Wide applications : Airline Tubing Air Pump Accessories are good for both salt and fresh water fish tank, aquarium and any glass surface; Easy to install and remove.