Donaldson Air Filter, Safety Radialseal P538542

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	135 mm (5.31 inch)
Inner Diameter	113 mm (4.45 inch)
Length	458 mm (18.03 inch)
Efficiency Test Std	ISO 5011
Type	Safety
Style	Radialseal
Brand	RadialSeal™