Donaldson Air Filter, Safety P127787

Safety filters have two functions: to act as a backup to the primary filter and to protect the engine during primary filter servicing.
• Serve as a backup filter in case of primary filter damage or improper installation.
• Prevent contaminants from entering the clean side of the air intake system during primary filter servicing.
• Designed to plug rapidly if contamination finds its way past the primary filter, alerting operators about an issue.
• Recommend that safety filters are replaced with every third primary filter change unless there has been a failure of the primary filter.

Specifications:

Outer Diameter	85.6 mm (3.37 inch)
Inner Diameter	74.47 mm (2.93 inch)
Length	304.8 mm (12.00 inch)
Gasket OD	95 mm (3.74 inch)
Flange Diameter	95 mm (3.74 inch)
Efficiency Test Std	ISO 5011
Type	Safety
Style	Round