The photo above shows a Large 9 inch Nozzle. It connects to 2.5 inch hose via hose clamps, or to 2 inch PVC via 2 in. couplers It delivers 15 gpm at 100 psi.
The hinged lid of the cradle is placed at ground level. The 2 holes in the front side of cradle have nothing to do with water. They prevent the nozzle from rotating by using zip ties if that is necessary.
The cradle supports the weight of an auto.
The hinged top of the cradle is set at ground level.
The 2 holes in the above cradle do not pass water.
They allow for a Zip Tie to prevent movement of the
nozzle inside.