The 90° Bottom Draw Adapters allow your pump to draw water down close to the bottom of your hydroponic system or reservoir while using a standard submersible pump. The 1/2" diameter adapter is compatible with EcoPlus 264 and 396 pumps. This adapter will draw water down to less than 1/2" in the bottom of your reservoir or tank. Quickly turn your front draw EcoPlus pump into a "bottom" draw pump with a Hydro Flow Bottom Draw Pump Adapter.