Remington Interceptor SPF300 Replacement Screen & Cutter Keep your Remington F-4900, F-5800, or F-7800 Shaver running at its best! Remington recommends replacing the foils and cutter blades every 6-12 months for optimal performance. This Remington Razor service package includes the foils and cutter blades. The SPF-300 service pack fits Remington shaver Models F-4900, F-5800, or F-7800 only F4900