N o Chris, my Surflow came with two half inch holes either side. I bought two L shape fittings that srewed into these holes, I then pushed the pipe onto these and fastened with jubilee clips. I do have a lengh of flexi pipe off a washing machine and one end will screw onto a hoselock connector, male connectors come with 2 sizes of thread, You can screw them together to make a double male connector. My flexi hose fits on the narrow thread. I need a piece of threaded tube with the same thread as a garden tap. I could then screw on male conectors each side of the box.
The links you posted showed the same connectors that you screw on garden taps.
I can't get my head round this one mate. There must be fittings out there that I have not seen yet. DAI