How are you planning to use these. The flag emitters are not pressure compensating like the plus series, which you probably need. Barrack systems with many shelves and watering moving up, you will need these to compensate for the pressure, and that away every box drips at 1 GPH.
Ohhh so that's what pressure compensating means. Yeah, if i have enough money to build the barrack it's gonna be shelves and pump that pumps water upward.