Evolution Aqua 4" Bottom Drain (No Aeration) PerformancePro Pumps See specifications in the attached

See specifications in the attached data chart

combining the rugged reliability of a piston and cylinder system with the economy and simplicity of a magnetic motor

While not itself toxic

Heterotrophic bacteria digest organic sediment and dissolved carbon

Evolution Aqua 4" Bottom Drain (No Aeration) PerformancePro Pumps See specifications in the attachedThe EVO 4" Bottom Drain is made of heavy duty Schedule 80 PVC. It features both a 4" horizontal pipe fitting. The center stand pipe can be adjusted, threading to the underside of the aeration plate and gluing to the bottom of the drain base. Includes stainless steel screws, and liner ring.