DescriptionRefrigeration charging adapter. From the high-end quality design, the top-loading rotation is easy to use and ensure no leakage. It has good sealed, safe and reliable, which can be used on all car A/C, commercial and domestic A/C and refrigeration systems.Features-Color: Red, Blue. -Material: Copper. - Size: 6.70X3.00X1.50cm/2.63X1.18X0.59in- Premium refrigerant charging valves are built for long life and dependability. -Easy to install, easy to use, safe product, durable and long service life. -Made of premium quality copper, durable and rust-proof, durable for long term use. -The safety valves has top-mounted rotation for the use of convenience. -Excellent performance. Easy to install, just install on the end of a charging hose.