FDF (First Degree Fitness) created adjustable Fluid Resistance in 2000 and now manufactures a range of fitness machines for residential and commercial applications, based on its unique and patented ‘Twin Tank Fluid Resistance system’
The adjustable fluid resistance Twin Tank was launched in 2002 on the FDF Fluid Rowing Machine (FDR-01). Such a release challenged the conventional thinking of how water could be used to provide resistance rather than just adding momentum to a rotating flywheel.
In 2005, FDF released the world's first Fluid Resistance Upper Body Ergometer (UBE).