We provide a 1 year manufacturer warranty and lifetime tech support for all of our products. If you wish to return a product, it must be in original, unused condition. A 15% restocking fee will apply for all systems, and shipping is non refundable. To register your product for the warranty, please fill out the information below. We do not have the order information from vendors other than 123Filter.com (Amazon, Home Depot, etc.), so please be sure to include that in your registration. If you have any questions or concerns about your product, please do not hesitate to call or email us, or put it in the notes below. Your satisfaction is our business! If you are happy with our products and service, we would truly appreciate you leaving a review for your product on Amazon. We sell exclusively online, and customer feedback helps us stay in business and continue supplying replacement filter cartridges at factory direct prices. Thank you!