Dm fit ard m series push fit reducers dm fit ard0608m a 6mm to 8mm push fit tube reducer from the dm fit ard m seriesthe reducer is manufactured from safe non toxic materials meeting the requirements of the us fda wras ansinsf 51 61 and sk zert they are widely used in water purification foodbeverage and pneumatic systems dm fit ard0608m pneumatic reducer tube diameter 6mm to 8mm