I have been involved in the transportation industry for over 40 years, owning and managing a fleet of 50 trucks and 105 trailers. I am currently responsible for the design and manufacturing of the HP2000 Extreme APU, which has been noted in a variety of locations as the #1 APU on the market today for pricing, dependability, and warranty. I have personally designed and hold 3 patents on the auxiliary power units and I take great pride in serving the transportation industry with the products that we manufacture. In addition, we also manufacture auxiliary power units for other applications, including lattice cranes, mining and construction trucks, and airport snow removal equipment. If you ever have a need for an auxiliary power unit, you owe it to yourself and to your customer to contact me at Parks Industries. (Phone) 855-472-0002 (E-mail) gparks@hp2000apu.com