Pressure Protection Valve - Premium, Protects the air brake system in the event of a leak or failure within the air suspension system. A serviceable replacement filter minimizes contaminates and other debris from , entering other air system accessories. Replacement Filter Kit for Premium Valve: 48100200 Product Features: Protects the air brake system in the event of a leak or failure within the air suspension systemA serviceable replacement filter minimizes contaminates and other debris from entering other air system accessories.