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I bought if from Sears (a major department store in North America). The package has a Model # 70165 "6-foot Pop-up Screen Room", Made in China & imported by Frikon Industries Limited, Mississauga, Ontario.
I guess what I was trying to show is that one can look outside the biological supply houses to find equipment that can be adapted. How about large mesh tents that are used to protect fruiting shrubs from birds and insects? I have seen pop-up tents, in the UK, for fisherman, the canvas sides could be replaced by screening. I have used a mesh dome sold to keep flies off of food-stuffs to trap Calliphorids. Raise one side of the dome about 1 cm off the ground and bait inside with a piece of fish. The flies find their way in but not their way out.