It has everything that you need other than the tank and the delivery method into your aquarium. You will need tubing and either a CO2 reactor of some type or a diffuser. The bubble counter, needle valve, and solenoid are all on that unit. Is that a good deal? Kind of up to you. I purchased a Milwaukee regulator for about $85 shipped from an ebay store. Rex Grigg sells regulators that he makes based on input from you. I can see myself buying a regulator from him next time that will cost more, but I will end up with a better unit.
My needle valve, for instance, is not that great. I have heard nothing but good experience from the people that buy Rex's regulators. I don't know anything about JBJ regulators, but I have heard mixed things about JBJ products as far as design and reliability.
My needle valve, for instance, is not that great. I have heard nothing but good experience from the people that buy Rex's regulators. I don't know anything about JBJ regulators, but I have heard mixed things about JBJ products as far as design and reliability.