4PCS AC Valve Caps, High Low Pressure Dustproof Leakproof for R134a | Air Conditioning System Seal Cap, Automotive Charging Port Protection, Universal for SUV RV Truck

Specifications: Material: Pure Copper Color: golden Size: 0.51 inch Package Size: 0.31 x 0.25 x 0.2 inches Weight: 25g/0.88oz Part Number: Guilcam-Car4 Quantity: 4 Why you need our product? -1.This product creates a tight seal that effectively prevents refrigerant leaks while blocking dust from entering the air conditioning ports. -2.This product helps users quickly distinguish between high- and low-pressure ports, preventing confusion during installation.

• Reliable Material: This product is crafted from pure copper. Pure copper offers an excellent metallic finish and stable physical properties, providing robust structural support. It is designed to meet the requirements of automotive air conditioning systems, ensuring the product's fundamental performance from a material perspective and satisfying the quality expectations of automotive professionals.
• Wide Compatibility: This product is sized to fit the air conditioning systems of the vast majority of vehicle models. The low-pressure cap has an internal diameter of 0.63 inches, the H-type cap has an internal diameter of 0.75 inches, and the overall height is 0.51 inches. It fits the high- and low-pressure ports of most vehicle models, eliminating concerns about size mismatches and offering broad applicability.
• Easy Installation: The installation process is simple and straightforward, requiring no specialized tools. Simply locate the H (high-pressure) and L (low-pressure) ports on the vehicle's air conditioning system, align the cap with the correct port, and manually tighten it until secure. The entire process takes only a short time, making it easy for both professional mechanics and ordinary car owners to complete.
• Leak Prevention: This product features precision threads and a built-in rubber O-ring gasket, creating a tight and secure seal that effectively prevents refrigerant leaks. It also blocks dust from entering the AC ports, preventing interference with the normal operation of the air conditioning system. This provides reliable protection for the vehicle's air conditioning system and extends its service life.
• Clear Markings: The top of this product features clear engravings marked with "H" and "L", allowing users to quickly distinguish between the high-pressure and low-pressure ports, preventing confusion during installation and improving efficiency. The engravings are clear and wear-resistant, maintaining their visibility even with long-term use.