I bought replacement parts and they gave me the wrong fittings which they blame on me. Awful customer service. If you know what you want and you can just order without dealing with the Customer Service, this is a great product but if you have to deal with issues. Good Luck, the help is awful or non existent. Also, good luck trying to talk to someone on the phone. Worst, service, ever!!! I will be buying my cartridges elsewhere! Your company is losing a lot of business with the service you are providing. PS Customers make your business thrive if no one provided the memo!!!!!