They sell them at Home Depot and Lowes in the galvanized and do it best hardware has the plastic ones.
I stole that pic from here. Window Well Experts - Covers, Wells & More But like CtRider said, almost any home improvement store should carry them.
Well I ended up finding the galvanized metal ones at TSC and will need to figure out mounting as they are 32" and I have metal rails that are 31 1/4 on center so that might work. Thanks all. This trailer has been quite s project already.
A mixture of one part muriatic acid and two parts water brushed or sprayed on will rough up that galvanized enough to take paint.
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Maybe. Muriatic acid as commonly sold to the public is a already a 5% solution if memory serves correct. As cgraham1 mentioned vinegar is a common acid to use. I did not know that myself. Cheaper, safer and more future uses than Muriatic. All I know is I had a bunch of galvanized hardware and tow chains that needed paint for decorative purposes. Seeing as I had Muriatic around the house I went that route. Worked great. Didn't remove the galvanization just roughed it up.
I learned the vinegar trick from my neighbor, who is a retired house painter. My downspouts are galvanized and it worked great.