

Shield Universal Locking Caps (Part Number: SHLD-U300) are a must-have accessory for refrigeration systems. This 300-pack all-brass design is corrosion-resistant and compatible with all refrigerant tanks and service ports. These locking caps help eliminate leaks, theft, vandalism, and accidental refrigerant mixing, supporting EPA management programs. They meet IMC 1101.10 and IRC M1411.6 standards.