The Matala Heavy Duty Air Manifold has two functions. It can decrease back pressure on your pond aeration system, and it can be used to distribute air from your aerator to several diffusers. The brass manifold connects to the air pump via a 3/4" barb.
This brass splitter/diffuser manifold is made with 2 or 4 outlets. The 2-way and 4-way styles are available in several barb widths.
Used when multiple air diffusers are required or to reduce back pressure on your system by bleeding excess air