Evolution Aqua 4" Bottom Drain with Air Diffuser Dainichi Fish Food Do not exceed the recommended

Do not exceed the recommended dosage

Comes with a stainless steel mounting plate suitable for different dock styles

depending on operating conditions

Atlantic Water Gardens Typhoon Shallow Water Aeration Systems — Installation Guide (PDF)

It passes through mechanical filtration stage (highly durable foam filters that trap dirt and debris) and UV clarification

Evolution Aqua 4" Bottom Drain with Air Diffuser Dainichi Fish Food Do not exceed the recommendedThe Evolution Aqua 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. Features: Heavy Duty Schedule 80 PVC 4 Horizontal