4 Pack 1/4" Refrigerant Safety Locking Caps with 2 Hex Keys, Tamper-resistant HVAC Service Valve Caps for R410a R22 R134a, Epa Building Code Compliant, Universal Fit for Air Conditioners

Features: Secure Sealing and Leak Prevention: Creates a tight, reliable seal to block dust, moisture and contaminants, maintaining stable refrigerant pressure and reducing system inefficiency caused by valve exposure. Easy Installation and Wide Application: Simple to install without complex tools. Suitable for central AC units, heat pumps, refrigerators, freezers and other cooling equipment for versatile daily use. Specifications: Material: plastic Color: black Size: 1/4 Package includes: 4 X 1/4" air conditioning refrigerant caps 2 x Hex wrenches Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays.

• Compliant and Professional Choice: compliant with IMC (International Mechanical Specification) and IRC (International Residential Specification), this system mandates HVAC locking caps on refrigerant ports; Whether during professional building audits or routine maintenance, it ensures your HVAC system is compliant and effectively avoids compliance risks
• Double Security, Tamper-proof: designed specifically for the anti-theft and security needs of refrigerant locking caps, they can only be opened with the included tools; Effectively prevents refrigerant theft, accidental operation by unqualified personnel, and the dangers posed by refrigerant humidification by teenagers, building a protective barrier for your home and business premises
• Dual Wrench Configuration, No More Anxiety: unlike sets on the market that only provide one tool, ours comes with two dedicated hex wrenches for Hvac locking cap keys and refrigerant locking cap keys; This extra backup completely eliminates the awkward situation of being unable to open or close the lock cap due to a lost tool on the construction site, making it a cost-effective choice for contractors and DIY homeowners
• Universally Compatible and Widely Applicable: designed specifically for standard 1/4-inch refrigerant service valves and turn caps, perfectly compatible with mainstream refrigerants such as R410A, R22, R134A, and R404A; Whether for residential split-type air conditioners or commercial refrigeration equipment, it provides a precise match and a robust seal
• Durable in All Weather Conditions and Resistant to Extremes: made from weather-resistant materials, it boasts excellent UV protection, grease resistance, and corrosion resistance; It maintains stable performance even under extreme temperature variations ranging from -40°F to 257°F, and will not become brittle or fade with prolonged outdoor exposure, protecting valves from impurities