A recent Marine Depot special ad is causing some customers to ask questions. The ad which is shown above suggests that a EcoTech marine MP40 is only $419.99 after 44% off. The MSRP for that particular model is yes, you guess it $419. We’re not sure what math Marine Depot is using, but other readers have suggested that they charge $840 and do a buy one get one free promotion. Whatever the case, we will assume this is a typo in response to raipdly creating ads for the impending christmas season.