Universal Silver Locking Cap (1 Each)

Novent caps protect air conditioning units and mini-split systems by preventing refrigerant leaks. They offer double protection with a single screw-in installation. Protect the efficiency of your air conditioning system and the environment from the loss or accidental mixing of refrigerant gases. Help protect children from serious injury or death by inhaling hazardous refrigerants. Patented Novent caps are precision-machined from high-quality brass, surrounded by a protective aluminum cover, and can only be installed and removed with a special tool.