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Donaldson Filler Breather Assemblies

A filler breather assembly does two jobs at one opening: it is the point oil is added at, and the vent that lets a reservoir breathe as fluid level and temperature change. Because it is the opening people use most often, it is also where contamination gets in most easily.

Assemblies differ by reservoir fitting, air flow capacity, filtration rating and whether they include a strainer or a lockable cap. Search by Donaldson part number, or send us the number on the existing unit.

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