The Penray NF3999 Coolant Filter Element lasts 50,000 miles, 5 months or 600 operating hours. Features include:
- High quality, long–life filter
- Specially designed for use with liquid cooling system treatment
- Lasts 50,000 miles between changes
- Guards against rust caused by low corrosion inhibitor protection
- Compatible with all types of antifreezes
- Contains filter cartridge, gasket, maintenance stickers