You'll be disappointed. That 295 gph is an exagerated estimate based on zero head pressure... that's no output restriction including any rise in height. You'll be lucky to get 1 gpm through the plate chiller.
I'd look for something with 500GPH or better with a threaded or barbed outlet.
For $30 Harbor Freight Tools - Quality Tools at the Lowest Prices
For $40 Harbor Freight Tools - Quality Tools at the Lowest Prices and it comes with a garden hose adapter.
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