I have cut the male section off the cord and want to feed it through a 100ft long rubber garden hose so I can rn power to a dock. Any suggestions?

Metal Hose Nozzle Pistol Sprayer- Auto Shut-Off, Saver 6 position

We do not have a snap-on dealer in St.John’s anymore, but I need to purchase some rubber water saving hose nozzle just like Snap-on’s YA297(Bluepoint). It’s a 9" nozzle that pretty much looks like a small piece of rubber hose that you just bend to turn it on.