I purchased this pump on 4/11/18 from marine depot for my new sps tank and got scared it wouldnt be enough flow so I bought the Vectra L1 and the M1 would had been more then enough flow for my tank lol. This is brand new and never seen water. I was going to keep it as a back up but there's really no need to. I will provide buyer with receipt so you have the warranty. Pump is 349.00 retail so you can save 25 bucks. Box was only open for fitting the controller in my control panel. Price includes shipping and all fees with insurance.