DN and DU filter driers with solid core are for use in liquid lines in refrigeration and freezing systems, A/C systems and refrigerated containers.

DN filters have a solid core composed of Molecular Sieves and activated aluminium oxide. This makes the DN filter suitable in applications where moisture and acid must be absorbed. DN is the correct choice for systems using HCFC refrigerants, but can also be used for HFC refrigerants. DU filters have a solid insert with 100% Molecular Sieves, which are recommended for refrigerating systems using HFC refrigerants, R 134a, R 404a, etc.


DN

•  Refrigerants R 22, R 134a and R 404A, R 507 etc.
•  Compatible with CFC and refrigerant blends containing R 124a, R 125, R 134a, R143a, R 152a, R 218, R 23 and R 32.
•  Solid core consisting of: 3Å molecular sieves and activated aluminium oxide for acid adsorption.