So you might get lucky and twist it as is (like in the seller video) and get perfect flow with no leaks. However, I have never installed a threaded faucet nozzle that hasn't leaked from at least one threaded connection (if I install it as is without using pipe thread seal tape). A roll of pipe thread sealant tape is inexpensive and will last you years project after project. I recommend wrapping all male fittings thinly and tightly from the start to prevent unwanted leaks.
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