Donsson's radially sealed type filters possess modern technological enhancements which benefit the end user in various ways; It is easy to install, only light pressure needs to be applied for the filter to hitch onto a ring inside the housing. The filter's elastic opening expands and wraps around the ring, producing an airtight seal. Non-polyurethane materials do not have the necessary elasticity and after a few days, they quit sealing and allow contaminants into the engine. We were the first to implement this type of filtration in Colombia, today we lead this marketplace with the biggest quantity of radial seal references.