Seaview Mast Mount f/FLIR M300 Series Fits Mast w/2-5/8" or Larger [SM-14-F3]Mast Mount for FLIR M300 Series Fits Mast with 2 5 8" or Larger Achieve an unobstructed view for your FLIR or Raymarine thermal camera by mounting it on your mast. Made from marine grade aluminum. We now Chem Film (same process used by Boeing) each high grade aluminum part prior to our standard 3 part epoxy prime and powder coat to ensure the best possible finish and corrosion resistance. Heavy Duty Six rivets per foot are used to hold the heavy duty