If you would like your boat to have all the features required by Navy Seal and USA Special Forces, manufactured to military specification, but you don't have the government budget, this is your inflatable boat!
From an engineering point of view I am trying to imaging another feature to recommend for the next iteration of this model, but so far everything is already in my hands, and it look like it will be like that for many years because this boat is built to last.
I will use the boat for diving in my corals' research: 3 divers, 6 tanks, scuba gears, 9.9HP outboard, cameras, instruments, etc. There is space for everything, heavy-duty D rings all around, and double 3/4" thick marine grade life line rope to secure it under heavy weather conditions miles away from shore line. The aluminum floor boards can take the hitting of the tanks with no signs of suffering, firmly hold in place by solid stringers, and the 1.5" thick transom is secure with redundant attachments of Korean PVC fabric, screws and plates, and more PVC...
But if you manage to have any issues just call Seamax to receive immediate attention, and 'resolution": To register the boat in USA I needed the original Certificate of Origin that was delayed from the shipment, after calling to request the document I received the DHL notification about the incoming envelope before I was able to finish my cup of coffee, this is the pleasant, peaceful and effective Vancouver style! C O N G R A T U L A T I O N S Seamax!
I purchased this item over the cheaper version for two reasons. The fist and to me the most important feature is that once you are in the water and the wheels are up they can be at an angle away from the boat and out of the way or the motor leaving you more room for tight turns. The second reason is its rigid structure and high quality of its built not to mention it only requires six hole in the transom and to me that worth it the less holes in the transom the better your off. My only concern at time of purchase where the weeks look to be cheap plastic on the pictures but upon arrival I am glad to report that is not the case they are good rubber and the air valves are actually at an angle facing outward making inflation a breeze unlike my friends cheaper wheels. its not fun trying to inflate the cheaper wheels. I am confident these wheels will last me a a lifetime just keeping them piled after each season after all even aluminum rust eventually but not if taken prevention.
Conclusion, yes they are more money, yes shipping is a lot BUT if you have a good boat you don't want cheap wheels that wheels that might ruin your perfect day before it even begins worth every penny because you wont have to replace them.
This seems to be a great pump. I really like the high volume/low pressure first stage that automatically switches to a high pressure/low volume second stage with automatic pressure cut-off. These features make it very easy to inflate your zodiac type boat quickly and to the recommended pressure without having to stop pumping, pull out your gauge, continue pumping, etc. I have checked the digital gauge with my needle type gauge and it appears to be accurate. I also like that everything is self-contained in one neat package, including the battery and optional dc clips if the attached battery runs out. It will pump up my 13 ft zodiac with battery to spare. My only bad point is that the gauge reads only in kpa and not psi [not that big a problem].