The Spray Nozzle ends are attached to hose with the hose clamps.
If a PVC pipe is run along the roof gutter line of a house, the Spray Nozzle and PVC pipe can be connected together, at low cost, as shown in the photo below. This roof gutter arrangement can augment the SprayHose and used to protect more of the roof from embers.
The PVC roof gutter is a permanent installation, while the hose connected nozzles should not be left in place all of the time where it might be damaged by lawn mowers, etc.
The PVC ends of the spray nozzles can be glued to the PVC 10 ft sections by PVC repair couplers. This does not allow for changing the angle of the spray once the parts are glued.