Garden hose Plug and Cap

My travel trailer has two inlets for water which had rubber plugs to cover them. The rubber was wearing out, so I decided to make plugs for the two inlets. The inlets also had screen filters, so the plugs had to have a recess to accommodate the filter. As long as I was designing, I made hose caps, too. I wanted an easy-to-grasp grip on each, so incorporated that in the design.