Random flow generator

3d printed random flow generator, made out of petg plastic which is aquarium safe what the item does is create a broad flow that spirals the water returning to your display tank i use them in both my nano reef tank and my planted tank eliminating the need of extra wave makers inside my display tank.

can use with stock return pump but will get more performance out of the unit with a upgraded return pump.

comes in two sizes 1/2 inch and 3/4 inch.