Major design themes for the Super Quiet series generators are safety, low noise, easy maintenance, transportability, and etc., with the highest emphasis on less noise. Noise generated by the unit has been lessened to below 65 dB by enhancing the noise reduction cover and by adding new noise absorbing duct with 3 air intakes. Generators show either an over-sized muffler or a 2nd muffler, depending on the model of the engine. Kubota went to a bigger-diameter as well, slower speed fan to lessen noise emissions. An air cleaner inlet hose is another design feature to lessen low-frequency noise.
The main applications for the Super Quiet series generators are general contractors and construction, municipalities, marine and agriculture markets. The huge capacity bottom mounted fuel tanks add to preventing fuel drops in the enclosure. A locking cap is recessed to prevent from damage and simplify