

Shield Universal Locking Caps (Part Number: SHLD-U50) are a set of 50 corrosion-resistant all brass design waterproof sleeves with a 3" Driver and Bit/Key, compatible with all refrigerant tanks and service ports. These locking caps help eliminate leaks, theft, vandalism, and accidental refrigerant mixing, supporting EPA management programs. Meeting IMC 1101.10 and IRC M1411.6 standards, these caps are essential for outdoor service ports. Installation can be done with the included key in minutes.