TTI Desiccant Breathers, PowerBreather TT-4. Equivalent to Air Sentry X-102, X-105, X-502, X-505, X-522, XR-102, XR-108, XR-122, XR-502, XR-508, XR-522, A-132, A-342, A-346, A-352, A-358; Des Case DC-VG-4, DC-HG-8, DC-EX-2, DC-EX-3, DC-EX-4; Beach BB-AG-4V, BB-AG-8H, BB-EX-2, BB-EX-3, BB-EX-4; RMF 121 Series with valve, KL121RV; Hydac BDE 400.
