Bring water to a boil in a small saucepan, and add bulgur. Cover, turn off heat, and let sit for 20 minutes. Fluff with a fork.
In a large bowl, mix together bulgur, zucchini, bread crumbs, flour, onion, parsley, cayenne, garlic, egg, salt and pepper.
Heat a large skillet over medium-high heat, and swirl in 2 tablespoons oil. When hot, spoon 1/4 cup mounds of batter into the pan, leaving room in between each, so that air can circulate. Flatten slightly with a spatula, and cook for 4-6 minutes, until well browned. Flip, flatten gently again, and continue cooking for another 4-6 minutes.
Remove fritters to a plate lined with a paper towel, and repeat once more with remaining oil and batter.
Sprinkle with additional sea salt, if desired.