So Im looking for the last Receptacle I need for my control box (NEMA L14-30 (250VAC/30A) twist lock electrical male receptacle) based on theelectricbrewery.com. Im having difficulty finding the right one and wondering if there was any reason why he used a male receptacle and not a female one. The female ones are a lot cheaper and more available and I can easily put a male plug on my power cord. Any ideas?