DC-VG-BB, 2.5" x 3.9" VentGuard Button Breather
DC-1, DC-1F, 2.5" x 5.3" Hygroscopic Breather
Des-Case Non-Desiccant breathers prevent contamination ingress in low humidity environments
or in applications where water-based fluids are in use (e.g. water glycol hydraulic fluid).
They help to prevent contamination by preventing free water as well as particles down to
1 micron from getting into the reservoir.