Eco Friendly Marine Re-Cycling. Base Mounting hole to hole 2″ x 11″. Will accept return within 14 days and credit is given upon receipt of item. PLEASE READ THE BELOW INFORMATION CAREFULLY BEFORE YOU? We offer 100% Satisfaction Guarantee on all of Our Listings! All of our products are laser tagged for verification? Please contact prior to return. These items are described as seen by the individual and are subject to their? Opinion of condition based on comparison of knowledge? We test all of our products at the time of removal. And things just stop working it? S a Used Marine Part in Most cases. To the best of our knowledge. All parts are working parts. We only list parts that have been tested and are in working order. Item is for sale on other site locations as well. We have other parts coming in daily. Will accept return within 14 days and credit is. Given upon receipt of item.