Sentinal Hardware in Ashland Missouri. The panels are clear polyethylene, 26" wide for 24" coverage with a 2" lap, old-school barn metal corrugation - like a Ruffles potato chip. I'm not sure of the brand name, but I could find out when I go back down there to pick them up.
Thank you. Went online to get phone number. Just checking prices.
Happy Gardening!
Colonialman