Best Selling 1:3/8in Set 2:1/2in Set 3:5/8in Set 4:3/4in Set Feature:1. Scope of application: air conditioning hose connection with spigot is applicable to the installation of air conditioning pipes of all cars, trucks, etc.2. Perfect Sealing: The refrigerant hose barb connector has excellent sealing performance, when you use it to connect the hose, there is no leakage problem.3. Aluminum Fitting: The refrigerant hose barb is made of high-strength aluminum, rust-proof, durable, can cope with harsh environments.4. Total 50pcs: The package contains 50pcs air conditioning hose, enough to meet your maintenance requirements.5. Long Durability: This AC Hose Barb Fitting has been extensively tested for quality and safety and will last in your car for a long time. Specification: Item Type: AC Hose Barb Fitting Material: Aluminum Scope of Application: Applicable to the air conditioning pipe fitting of all cars, trucks and engineering vehicles Package list: 50 x Refrigerant Hose Barb Fitting