Up for sale is an aquamist single channel manifold. This manifold has 4 ports, two of which are taken up by 4mm push lock fittings. The other one is utilized by a 75psi aquamist map sensor that provides feedback to the aquamist race pump, telling it when to turn off. This allows you to seamlessly install this unit into your injection system. The 4th port is plugged with a 1/8th BSP plug. This port can provide you with a quick, clean, and easy way of installing a water pressure gauge in your system. It doesn't get much better than that. Aquamist asks 88 dollars for this unit. I'm only asking 45. I believe this unit was used before.