Jetsam Technologies' goal is to have all products available at all times. When we receive an order for a rebreather, booster, DSV, or valve we would like to be able to ship immediately. Due to the complications of manufacturing, this isnt always possible. In the event that there is a delay in product availability, we will take your name and contact information and let you know when we are ready to ship. Once you let us know that you want a product, your name goes on our contact list. We ship first come, first served. No deposit is ever required. A word on deposits and payments: It has never been our policy to take deposits or payments in advance. If you would like to make a payment in advance, that is fine. Some people find that due to timing or a favorable exchange rate they prefer to pay early. If for any reason you do decide to pay early, and you change your mind, we will be happy to offer you a full refund anytime prior to shipping. Please feel free to contact us with any questions you may have.