This high quality brass 2 way manifold is designed to reduce back pressure on your system. The brass manifold connects to your pump via a 3/4" barb. The Hakko Air Pump outlet fitting comes with a white L Tube that will connect directly to the 2 way Manifold. The outlets on the manifold are 3/8" barb.
For 3/8 Inch: The multiple 3/8" outlets will connect to 3/8" air hose delivering air to your diffusers.
For 1/2 Inch: The multiple 1/2" outlets will connect to 3/8" air hose delivering air to your diffusers.
For use with Hakko Air Pumps HK 25L through HK 80L