Evolution Aqua 4" Bottom Drain with Air Diffuser AquascapePRO These easy-to-use pumps feature energy-efficient

These easy-to-use pumps feature energy-efficient

These highly-efficient models use the latest filtration technology to decrease maintenance time and provide quick

Simple to install and maintain and easy to camouflage

All lights feature 60° beam angle and 20' power cord

Evolution Aqua 4" Bottom Drain with Air Diffuser AquascapePRO These easy-to-use pumps feature energy-efficientThe EVO 4" Aerated Bottom Drain is made of heavy duty Schedule 80 PVC. It features both a 4" horizontal pipe fitting and a 1" side mounted aeration pipe fitting to make aeration simpler. 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, liner ring and aeration disc with plate. We recommend between 30 and 100 liters of air per minute with