I had a chance to give the Hiraliy 5W Dual Outlet Aquarium Air Pump and I have to say among the dual air pumps that I own, this one is the largest.
The pump is easy to connect tubes, very quiet and is shockproof. Thanks to the 8 rubber feet, no worries of the pump moving on its own and falling. And thanks to its bigger size and its weight, it does stay in place.
At 5W, the pump features a powerful copper motor that can generate a large amount of aeration. You can use the control knob, so you have an adjustable control for air flow.
I have decided to use this for my oranda tank, mainly to have a secondary filter as any goldfish can get messy and also on my quarantine tank for another secondary sponge filter.
You also get two 6.6 ft. of silicone tubing, 2 big air stones, 2 check valves and the air pump.
Overall, the Hiraliy 5W Dual Outlet Aquarium Air Pump is sold for a great price at under $19. You get a quiet and powerful air pump with two outlets that works wonderfully. Definitely recommended!