DT-1 has been manufacturing air-filters  for over 30 years and is the choice of todays top professionals. 
DT-1 is sold worldwide. DT-1's world class foam technology delivers maximum airflow while maintaining 
critical engine protection. Their super-seal base creates the cleanest and best seal on the market. 
All DT-1 Air Filters are handmade manufactured in Belgium and USA with the highest quality bonded dual 
and triple foam available. DT-1 Air Filters come standard or pre-oiled. Our pre-oiled filters are oiled with 
the highest quality flame resistant bio-degrable filter oil.