We manufacture high quality aquarium products. We have over 10 years of experience in the Aquarium Industry. We offer warranty (ask for the limited warranty details on certain Reef Fanatic products) against manufacture defects on all monitors and controllers and offer free customer support. We sell only to pet stores and dealers, but end users are welcome to call with questions or problems on our products. We are also happy to recommend a pet store close to you that carries our products.