It is a great idea to use the RV Sewer Hose Carrier for fishing poles. You can lock the Valterra RV Sewer Hose Carrier part # A04-5094BK with a padlock using the hole in the lid on the ends of the carrier. The hole measures a little less than 1/4". I recommend to use Master Lock Covered, Solid Body Padlock part # 131D to lock it.
I took a look at your photo and we do not carry a gray water hose storage box that looks like yours. We do carry the Lippert Components Nozzle Enclosure with... view full answer...