1.3 L Aquarium Co2 System Generator With Regulator Solenoid Valve For, G600Smini Product Features ?SUS 304 Stainlees Steel Material ?The Cylinder, Filter Element and the Neddle valve., etc are all using real SUS 304, Durable and long lasting. ?mini Body?Designed for small tank. Does not take up too much space! Quick plug design, makes the filling of ingredients SO convenient! ?Accessories?Acrylic co2 diffuser(the disk can be replaced and the refining effect is much better than glass one); Check valve(prevent thetank water backflow) ?SUS 304 Filter Element?Minimize the failure of solenoid valve ?Low Temperature Silent Solenoid Valve?12V DC, working temperature is lower than body temperature, no sound and no noise! Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!