- No Vent Tamper Resistant Caps have Become the Standard in Sealing and Protecting Schraeder Service Valves. Safe Guard Your AC Systems Efficiency and the Environment From Lost or Accidental Mixing of Refrigerant Gases
- Resists Crushing and Removal without Key
- Corrosion Resistant Anodized Aluminum
- Integral Neoprene O-Ring Resists Oils and Sealants
- Torque Limiter Prevents Overtightening