Easy-to-install. Accent lighting and bubbles are provided with a single piece of equipment. Attach airline tubing (sold separately) to air inlet on the LED Bubble Ring. Make sure airstone is securely in place. Connect airline tubing to an air pump (sold separately). Use a check valve (sold separately) to prevent back siphoning in the event of a power outage. Connect power cord to transformer. Position and secure LED Bubble Ring, into the gravel of your aquarium with gravel anchor. Plug transformer and air pump into electrical outlet. Note: make drip loop for safety.
Marineland Auto Color Changing LED Bubble Ring, 4.7" D X 1.125" W X 1.3125" H
Dimensions: 4.7" D X 1.125" W X 1.3125" H, Power cord: 10 ft.
Additional Product Information: 6 LED's