This is just a simple plastic block to hold a Pawfly 5-Way Aquarium Air Flow Control Lever Valve Distributor Splitter Pump Amazon.com.

I modeled the valve set then subtracted it from a solid, making a socket. I set the top of the block just above the centerline of the horizontal pipe, so that it clicks in to place for a solid friction fit.

The fit was a bit too snug, so I heated up the base with a heat gun, then was able to easily press in the valve. It was snug, but I was concerned that it would fall out when I was pulling on the hoses, so I siliconed it in. Should be solid now.

Here it is mounted under my shelf, all ready to grow phyto.

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