Faster and easier to install than any other spillway.  Ideal for use at beginning on streams and in block walls, pools and formal fountains.  Perfect for where a cascade of water is desired and filtration is not needed.  Extra strong vertical rib design created a nearly indestructible diffuser.  3 1/2" low profile makes them easy to conceal, consistent 14" depth ensures all sizes will work together.  Load bearing design allows block to be stacked directly on diffusers.  Units have dual 2" inlets.

• 1000 to 4000 GPH recommended flow