Chassis ProTech | Hands Free 360° Internal Chassis FlusherChassis ProTech is a GAME CHANGING under body protection system to help slow down the effects of rust and wash away unwanted dirt, sand and road grime! Chassis ProTech is a unique one of a kind Australian made, manufactured and designed unit was designed after years of experience working on four wheel drives, caravans and boat trailers. Chassis rails and A frames of these vehicles are extremely hard to clean out and this can be a very messy and dirty